51
|
Abstract
Tumor blood vessel formation (angiogenesis) is essential for tumor growth and metastasis. Two main endothelial ligand–receptor pathways regulating angiogenesis are vascular endothelial growth factor (VEGF) receptor and angiopoietin-TIE receptor pathways. The angiopoietin-TIE pathway is required for the remodeling and maturation of the blood and lymphatic vessels during embryonic development after VEGF and VEGF-C mediated development of the primary vascular plexus. Angiopoietin-1 (ANGPT1) stabilizes the vasculature after angiogenic processes, via tyrosine kinase with immunoglobulin-like and EGF-like domains 2 (TIE2) activation. In contrast, ANGPT2 is upregulated at sites of vascular remodeling. ANGPT2 is secreted by activated endothelial cells in inflammation, promoting vascular destabilization. ANGPT2 has been found to be expressed in many human cancers. Intriguingly, in preclinical models inhibition of ANGPT2 has provided promising results in preventing tumor angiogenesis, tumor growth, and metastasis, making it an attractive candidate to target in tumors. However, until now the first ANGPT2 targeting therapies have been less effective in clinical trials than in experimental models. Additionally, in preclinical models combined therapy against ANGPT2 and VEGF or immune checkpoint inhibitors has been superior to monotherapies, and these pathways are also targeted in early clinical trials. In order to improve current anti-angiogenic therapies and successfully exploit ANGPT2 as a target for cancer treatment, the biology of the angiopoietin-TIE pathway needs to be profoundly clarified.
Collapse
Affiliation(s)
- Dieter Marmé
- Tumor Biology Center, Freiburg, Baden-Württemberg Germany
| |
Collapse
|
52
|
Ying Z, Minghui T, Feng B, Ke W. Tanshinone II A improves distribution and anti-tumor efficacy of pegylated liposomal doxorubicin via normalizing the structure and function of tumor vasculature in hepa1-6 hepatoma mice model. J TRADIT CHIN MED 2018. [DOI: 10.1016/s0254-6272(18)30980-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
53
|
华 欣, 朱 晓. [Research Advances of Ang-2 in Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2018; 21:868-874. [PMID: 30454550 PMCID: PMC6247002 DOI: 10.3779/j.issn.1009-3419.2018.11.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/20/2018] [Accepted: 06/25/2018] [Indexed: 11/26/2022]
Abstract
Non-small cell lung cancer (NSCLC) is one of the malignant tumors with highest mortality in the world, it is still a difficult problem in clinical field. Its occurrence and development are closely associated with tumor angiogenesis. Angiopoietin-2 (Ang-2) is an important angiogenesis factor that has involved in many researches and it has been confirmed that the expression of Ang-2 is significantly up-regulated in tissues and blood of NSCLC. Meanwhile, Ang-2 is related to malignant biological behavior of cancer cells, making it a potential biological marker for the diagnosis and prognosis of NSCLC. At present, researches on Ang-2 how to promote the progression of NSCLC around the world are focused on Ang-2 regulating the proliferation, invasion, and metastasis of NSCLC. This paper summarized and estimated the studies and literature reports of regulatory mechanisms of Ang-2 in NSCLC, hopefully it could help looking for targeted drug treatment of Ang-2 in the future.
.
Collapse
Affiliation(s)
- 欣 华
- 210000 南京,东南大学医学院Medical College of Southeast University, Affiliated Zhongda Hospital of Southeast University, Nanjing 210000, China
| | - 晓莉 朱
- 210000 南京,东南大学附属中大医院呼吸科Department of Respiration, Affiliated Zhongda Hospital of Southeast University, Nanjing 210000, China
| |
Collapse
|
54
|
Raimondi A, Nichetti F, Peverelli G, Di Bartolomeo M, De Braud F, Pietrantonio F. Genomic markers of resistance to targeted treatments in gastric cancer: potential new treatment strategies. Pharmacogenomics 2018; 19:1047-1068. [PMID: 30041572 DOI: 10.2217/pgs-2018-0077] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Gastric cancer is a highly heterogeneous disease, displaying a complex genomic landscape and an unfavorable outcome with standard therapies. Based on distinctive genomic alterations, novel targeted agents have been developed with the aim of personalizing treatments and improving patient outcome. However, a subgroup of patients is primarily treatment-resistant, and even in the initially sensitive population, secondary resistance emerges, thus limiting therapeutic benefit. In this review, we summarize the clinical data about standard targeted agents in gastric cancer, specifically anti-HER2 treatments and antivascular therapies. We also illustrate the available evidence regarding molecular mechanisms of resistance to these agents and we discuss potential strategies for new targeted treatments that could overcome such resistance.
Collapse
Affiliation(s)
- Alessandra Raimondi
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Federico Nichetti
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giorgia Peverelli
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Maria Di Bartolomeo
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Filippo De Braud
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.,Department of Oncology & Hemato-oncology, University of Milan, Italy
| | - Filippo Pietrantonio
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.,Department of Oncology & Hemato-oncology, University of Milan, Italy
| |
Collapse
|
55
|
Randi AM, Smith KE, Castaman G. von Willebrand factor regulation of blood vessel formation. Blood 2018; 132:132-140. [PMID: 29866817 PMCID: PMC6182264 DOI: 10.1182/blood-2018-01-769018] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 04/18/2018] [Indexed: 02/06/2023] Open
Abstract
Several important physiological processes, from permeability to inflammation to hemostasis, take place at the vessel wall and are regulated by endothelial cells (ECs). Thus, proteins that have been identified as regulators of one process are increasingly found to be involved in other vascular functions. Such is the case for von Willebrand factor (VWF), a large glycoprotein best known for its critical role in hemostasis. In vitro and in vivo studies have shown that lack of VWF causes enhanced vascularization, both constitutively and following ischemia. This evidence is supported by studies on blood outgrowth EC (BOEC) from patients with lack of VWF synthesis (type 3 von Willebrand disease [VWD]). The molecular pathways are likely to involve VWF binding partners, such as integrin αvβ3, and components of Weibel-Palade bodies, such as angiopoietin-2 and galectin-3, whose storage is regulated by VWF; these converge on the master regulator of angiogenesis and endothelial homeostasis, vascular endothelial growth factor signaling. Recent studies suggest that the roles of VWF may be tissue specific. The ability of VWF to regulate angiogenesis has clinical implications for a subset of VWD patients with severe, intractable gastrointestinal bleeding resulting from vascular malformations. In this article, we review the evidence showing that VWF is involved in blood vessel formation, discuss the role of VWF high-molecular-weight multimers in regulating angiogenesis, and review the value of studies on BOEC in developing a precision medicine approach to validate novel treatments for angiodysplasia in congenital VWD and acquired von Willebrand syndrome.
Collapse
Affiliation(s)
- Anna M Randi
- Vascular Sciences, Imperial Centre for Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Koval E Smith
- Vascular Sciences, Imperial Centre for Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Giancarlo Castaman
- Center for Bleeding Disorders and Coagulation, Department of Oncology, Careggi University Hospital, Florence, Italy
| |
Collapse
|
56
|
Xia ZB, Meng FR, Fang YX, Wu X, Zhang CW, Liu Y, Liu D, Li GQ, Feng FB, Qiu HY. Inhibition of NF-κB signaling pathway induces apoptosis and suppresses proliferation and angiogenesis of human fibroblast-like synovial cells in rheumatoid arthritis. Medicine (Baltimore) 2018; 97:e10920. [PMID: 29879032 PMCID: PMC5999456 DOI: 10.1097/md.0000000000010920] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is the most common inflammatory arthritis and is a major cause of disability. The nuclear factor-kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway has been reported to be involved in the pathogenesis of RA with unclear mechanisms. Therefore, this study aims to explore the effect of NF-κB pathway on proliferation, apoptosis, and angiogenesis of human fibroblast-like synovial cells (HFLS) in RA. METHODS Normal HFLS and RA-HFLS were selected as the normal and control groups, respectively. RA-HFLS were treated by BAY11-7082 (an inhibitor of NF-κB) in different concentrations, namely 2.5 μmol/L BAY11-7082, 5 μmol/LBAY11-7082 and 10 μmol/L BAY11-7082. MTT assay was employed to detect cell proliferation. Cell apoptosis was determined by flow cytometry at 24, 48, and 72 hours after culture. Western blot analysis was employed to detect the expressions of NF-κB, angiogenesis-related factors (VEGF, Ang1, and Ang2). RESULTS Initially, we found that BAY11-7082 inhibited NF-κB expression in a concentration-dependent manner. According to the findings of MTT assay and flow cytometry, we understood that RA-HFLS treated by BAY11-7082 (an inhibitor of NF-κB), the inhibition of NF-κB pathway, suppressed RA-HFLS proliferation and induced RA-HFLS apoptosis in a concentration and time-dependent manner. Furthermore, RA-HFLS treated by BAY11-7082 presented decreased VEGF, Ang1 and Ang2 expressions in a concentration-dependent manner. CONCLUSION The study concluded that inhibition of NF-κB pathway induced cell apoptosis and suppressed proliferation and angiogenesis of RA-HFLS, which could serve as a novel target in the treatment of RA.
Collapse
Affiliation(s)
- Zhong-Bin Xia
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| | - Fan-Ru Meng
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Yu-Xuan Fang
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Xia Wu
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Chun-Wang Zhang
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Ying Liu
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
- Clinical Medical College, Dalian Medical University, Dalian
| | - Dan Liu
- Department of Pathology, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, PR China
| | - Guo-Qing Li
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| | - Fan-Bo Feng
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| | - Hai-Yang Qiu
- Department of Rheumatology, Clinical Medical College of Yangzhou University (Northern Jiangsu People's Hospital Affiliated to Yangzhou University), Yangzhou
| |
Collapse
|
57
|
Coelho AL, Gomes MP, Catarino RJ, Rolfo C, Lopes AM, Medeiros RM, Araújo AM. Angiogenesis in NSCLC: is vessel co-option the trunk that sustains the branches? Oncotarget 2018; 8:39795-39804. [PMID: 26950275 PMCID: PMC5503654 DOI: 10.18632/oncotarget.7794] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 02/09/2016] [Indexed: 12/21/2022] Open
Abstract
The critical role of angiogenesis in tumor development makes its inhibition a valuable new approach in therapy, rapidly making anti-angiogenesis a major focus in research. While the VEGF/VEGFR pathway is the main target of the approved anti-angiogenic molecules in NSCLC treatment, the results obtained are still modest, especially due to resistance mechanisms. Accumulating scientific data show that vessel co-option is an alternative mechanism to angiogenesis during tumor development in well-vascularized organs such as the lungs, where tumor cells highjack the existing vasculature to obtain its blood supply in a non-angiogenic fashion. This can explain the low/lack of response to current anti-angiogenic strategies. The same principle applies to lung metastases of other primary tumors. The exact mechanisms of vessel co-option need to be further elucidated, but it is known that the co-opted vessels regress by the action of Angiopoietin-2 (Ang-2), a vessel destabilizing cytokine expressed by the endothelial cells of the pre-existing mature vessels. In the absence of VEGF, vessel regression leads to tumor cell loss and hypoxia, with a subsequent switch to a neoangiogenic phenotype by the remaining tumor cells. Unravelling the vessel co-option mechanisms and involved players may be fruitful for numerous reasons, and the particularities of this form of vascularization should be carefully considered when planning anti-angiogenic interventions or designing clinical trials for this purpose. In view of the current knowledge, rationale for therapeutic approaches of dual inhibition of Ang-2 and VEGF are swiftly gaining strength and may serve as a launchpad to more successful NSCLC anti-vascular treatments.
Collapse
Affiliation(s)
- Ana Luísa Coelho
- Instituto Português de Oncologia, Molecular Oncology Group, Porto, Portugal.,Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Mónica Patrícia Gomes
- Instituto Português de Oncologia, Molecular Oncology Group, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Raquel Jorge Catarino
- Instituto Português de Oncologia, Molecular Oncology Group, Porto, Portugal.,Faculdade de Medicina, University of Porto, Porto, Portugal
| | - Christian Rolfo
- Phase I, Early Clinical Trials Unit, Antwerp University Hospital, Edegem, Belgium.,Centre of Oncological Research (CORE), Antwerp University, Edegem, Belgium
| | - Agostinho Marques Lopes
- Faculdade de Medicina, University of Porto, Porto, Portugal.,Centro Hospitalar de S. João, Pulmonology Department, Porto, Portugal
| | - Rui Manuel Medeiros
- Instituto Português de Oncologia, Molecular Oncology Group, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal.,Liga Portuguesa Contra o Cancro (NRNorte), Research Department, Porto, Portugal
| | - António Manuel Araújo
- Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal.,Centro Hospitalar do Porto, Medical Oncology Department, Porto, Portugal
| |
Collapse
|
58
|
Modulation of Angiopoietin 2 release from endothelial cells and angiogenesis by the synaptic protein Neuroligin 2. Biochem Biophys Res Commun 2018; 501:165-171. [PMID: 29709479 DOI: 10.1016/j.bbrc.2018.04.204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 04/26/2018] [Indexed: 11/22/2022]
Abstract
The synaptic protein Neuroligin 2, similarly to its isoform Neuroligin 1, is produced by endothelial cells, but its activity in the vascular context remains unknown. This study aimed at verifying the hypothesis that Neuroligin 2, in parallel with its extraneuronal involvement in pancreatic beta cells exocytosis, modulated cytokine release from endothelial cells and consequently angiogenesis. We used in vitro approaches to modulate Neuroligin 2 expression and Neuroligin 2 null mice to test our hypotheses. In vitro, upon VEGF stimulation, Neuroligin 2 silencing strongly reduces Angiopoietin 2 release in the medium and increases the endothelial cell retention of Weibel Palade Bodies, the specialized organelles that store Angiopoietin 2 and various other cytokines. On the contrary, Neuroligin 2 overexpression almost depletes cells of Weibel Palade Bodies, independent of VEGF. In vivo, both the retina and tumor xenografts grown in NLGN2- null mice display an immature vasculature, with lower pericyte coverage and lower Tie2 phosphorylation. At the molecular level NLGN2 colocalizes with its neuronal partner collibystin, a CDC42 guanine nucleotide exchange factor, which is also expressed by endothelial cells and in turn modulates Angiopoietin 2 release. Neuroligin 2, an inhibitory synaptic protein, modulates a peculiar aspect of vascular function and could represent a novel target of therapy in various fields, from tumor angiogenesis to vascular diseases.
Collapse
|
59
|
Wang X, Zhang J, Wang Y, Tu M, Wang Y, Shi G. Upregulated VEGFA and DLL4 act as potential prognostic genes for clear cell renal cell carcinoma. Onco Targets Ther 2018; 11:1697-1706. [PMID: 29618931 PMCID: PMC5875410 DOI: 10.2147/ott.s150565] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Purpose As a typical hypervascular tumor, clear cell renal cell carcinoma (ccRCC) is the most common type of RCC. This study was aimed to explore the prognostic genes for ccRCC, focusing on the roles of vascular endothelial growth factor A (VEGFA) and Delta-like ligand 4 (DLL4) in the disease. Materials and methods The mRNA-sequencing data of kidney renal clear cell carcinoma (KIRC) were obtained from The Cancer Genome Atlas (TCGA) database, including 469 tumor samples and 68 adjacent normal samples. Using limma package, differentially expressed genes (DEGs) were analyzed by differential expression and subgroup analyses and confirmed using validation dataset GSE53757. Followed by enrichment analysis, protein–protein interaction (PPI) network analysis and protein subcellular localization were performed using multifaceted analysis tool for human transcriptome tool, and Cytoscape software and InnateDB database, respectively. Moreover, survival analysis was conducted to identify key prognosis-associated genes. In addition, VEGFA and DLL4 levels were detected using real-time quantitative PCR (qRT-PCR). Results A total of 1,984 DEGs were screened in the KIRC tumor samples. VEGFA was located in extracellular space and could interact with placental growth factor (PGF) and angiopoietin 2 (ANGPT2) in the PPI network. Subgroup analysis suggested that VEGFA was significantly upregulated in stages I, II, and III ccRCC tumor samples. Survival analysis showed that TIMP1 was among the top four prognosis-associated genes. qRT-PCR analysis confirmed that the expression levels of DLL4 and VEGFA were significantly upregulated in tumor samples. Conclusion VEGFA and DLL4 might be prognostic genes for ccRCC. Besides, PGF, ANGPT2, and TIMP1 might also be related to the prognosis of ccRCC patients.
Collapse
Affiliation(s)
- Xilong Wang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Jun Zhang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Yangyun Wang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Minqi Tu
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Ying Wang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Guowei Shi
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| |
Collapse
|
60
|
Abstract
Immunotherapy has emerged as a major therapeutic modality in oncology. Currently, however, the majority of patients with cancer do not derive benefit from these treatments. Vascular abnormalities are a hallmark of most solid tumours and facilitate immune evasion. These abnormalities stem from elevated levels of proangiogenic factors, such as VEGF and angiopoietin 2 (ANG2); judicious use of drugs targeting these molecules can improve therapeutic responsiveness, partially owing to normalization of the abnormal tumour vasculature that can, in turn, increase the infiltration of immune effector cells into tumours and convert the intrinsically immunosuppressive tumour microenvironment (TME) to an immunosupportive one. Immunotherapy relies on the accumulation and activity of immune effector cells within the TME, and immune responses and vascular normalization seem to be reciprocally regulated. Thus, combining antiangiogenic therapies and immunotherapies might increase the effectiveness of immunotherapy and diminish the risk of immune-related adverse effects. In this Perspective, we outline the roles of VEGF and ANG2 in tumour immune evasion and progression, and discuss the evidence indicating that antiangiogenic agents can normalize the TME. We also suggest ways that antiangiogenic agents can be combined with immune-checkpoint inhibitors to potentially improve patient outcomes, and highlight avenues of future research.
Collapse
|
61
|
Conroy S, Kruyt FAE, Wagemakers M, Bhat KPL, den Dunnen WFA. IL-8 associates with a pro-angiogenic and mesenchymal subtype in glioblastoma. Oncotarget 2018; 9:15721-15731. [PMID: 29644004 PMCID: PMC5884659 DOI: 10.18632/oncotarget.24595] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 02/10/2018] [Indexed: 12/20/2022] Open
Abstract
Glioblastoma (GBM) is a highly aggressive brain tumor characterized by a high rate of vascularization. However, therapeutic targeting of the vasculature through anti-vascular endothelial growth factor (VEGF) treatment has been disappointing, for which Angiopoietin-2 (Ang-2) upregulation has partly been held accountable. In this study we therefore explored the interplay of Ang-2 and VEGFA and their effect on angiogenesis in GBM, especially in the context of molecular subclasses. In a large patient cohort we identified that especially combined high expression of Ang-2 and VEGFA predicted poor overall survival of GBM patients. The high expression of both factors was also associated with increased IL-8 expression in GBM tissues, but in vitro stimulation with Ang-2 and/or VEGFA did not indicate tumor or endothelial cell-specific IL-8 responses. Glioblastoma stem cells (GSCs) of the mesenchymal (MES) subtype showed dramatically higher expression of IL8 when compared to proneural (PN) GSCs. Secreted IL-8 derived from MES GSCs induced endothelial proliferation and tube formation, and the MES GBMs had increased counts of proliferating endothelial cells. Our results highlight a critical pro-angiogenic role of IL-8 in MES GBMs.
Collapse
Affiliation(s)
- Siobhan Conroy
- Department of Pathology and Medical Biology, Division of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.,Department of Translational Molecular Pathology, The University of Texas, M.D. Anderson Cancer Center, Houston, TX, USA
| | - Frank A E Kruyt
- Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Michiel Wagemakers
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Krishna P L Bhat
- Department of Translational Molecular Pathology, The University of Texas, M.D. Anderson Cancer Center, Houston, TX, USA
| | - Wilfred F A den Dunnen
- Department of Pathology and Medical Biology, Division of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| |
Collapse
|
62
|
Zhao Q, Eichten A, Parveen A, Adler C, Huang Y, Wang W, Ding Y, Adler A, Nevins T, Ni M, Wei Y, Thurston G. Single-Cell Transcriptome Analyses Reveal Endothelial Cell Heterogeneity in Tumors and Changes following Antiangiogenic Treatment. Cancer Res 2018; 78:2370-2382. [PMID: 29449267 DOI: 10.1158/0008-5472.can-17-2728] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/27/2017] [Accepted: 02/12/2018] [Indexed: 11/16/2022]
Abstract
Angiogenesis involves dynamic interactions between specialized endothelial tip and stalk cells that are believed to be regulated in part by VEGF and Dll4-Notch signaling. However, our understanding of this process is hampered by limited knowledge of the heterogeneity of endothelial cells and the role of different signaling pathways in specifying endothelial phenotypes. Here, we characterized by single-cell transcriptomics the heterogeneity of mouse endothelial cells and other stromal cells during active angiogenesis in xenograft tumors as well as from adult normal heart, following pharmacologic inhibition of VEGF and Dll4-Notch signaling. We classified tumor endothelial cells into three subpopulations that appeared to correspond with tip-like, transition, and stalk-like cells. Previously identified markers for tip and stalk cells were confirmed and several novel ones discovered. Blockade of VEGF rapidly inhibited cell-cycle genes and strongly reduced the proportion of endothelial tip cells in tumors. In contrast, blockade of Dll4 promoted endothelial proliferation as well as tip cell markers; blockade of both pathways inhibited endothelial proliferation but preserved some tip cells. We also phenotypically classified other tumor stromal cells and found that tumor-associated fibroblasts responded to antiangiogenic drug treatments by upregulating hypoxia-associated genes and producing secreted factors involved in angiogenesis. Overall, our findings better define the heterogeneity of tumor endothelial and other stromal cells and reveal the roles of VEGF and Dll4-Notch in specifying tumor endothelial phenotype, highlighting the response of stromal cells to antiangiogenic therapies.Significance: These findings provide a framework for defining subpopulations of endothelial cells and tumor-associated fibroblasts and their rapid changes in gene expression following antiangiogenic treatment. Cancer Res; 78(9); 2370-82. ©2018 AACR.
Collapse
Affiliation(s)
- Qi Zhao
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | | | - Asma Parveen
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | | | - Ying Huang
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | - Wei Wang
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | - Yueming Ding
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | | | | | - Min Ni
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | - Yi Wei
- Regeneron Pharmaceuticals Inc., Tarrytown, New York
| | | |
Collapse
|
63
|
Cui R, Yue W, Lattime EC, Stein MN, Xu Q, Tan XL. Targeting tumor-associated macrophages to combat pancreatic cancer. Oncotarget 2018; 7:50735-50754. [PMID: 27191744 PMCID: PMC5226617 DOI: 10.18632/oncotarget.9383] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 05/05/2016] [Indexed: 12/18/2022] Open
Abstract
The tumor microenvironment is replete with cells that evolve with and provide support to tumor cells during the transition to malignancy. The hijacking of the immune system in the pancreatic tumor microenvironment is suggested to contribute to the failure to date to produce significant improvements in pancreatic cancer survival by various chemotherapeutics. Regulatory T cells, myeloid derived suppressor cells, and fibroblasts, all of which constitute a complex ecology microenvironment, can suppress CD8+ T cells and NK cells, thus inhibiting effector immune responses. Tumor-associated macrophages (TAM) are versatile immune cells that can express different functional programs in response to stimuli in tumor microenvironment at different stages of pancreatic cancer development. TAM have been implicated in suppression of anti-tumorigenic immune responses, promotion of cancer cell proliferation, stimulation of tumor angiogenesis and extracellular matrix breakdown, and subsequent enhancement of tumor invasion and metastasis. Many emerging agents that have demonstrated efficacy in combating other types of tumors via modulation of macrophages in tumor microenvironments are, however, only marginally studied for pancreatic cancer prevention and treatment. A better understanding of the paradoxical roles of TAM in pancreatic cancer may pave the way to novel preventive and therapeutic approaches. Here we give an overview of the recruitment and differentiation of macrophages, TAM and pancreatic cancer progression and prognosis, as well as the potential preventive and therapeutic targets that interact with TAM for pancreatic cancer prevention and treatment.
Collapse
Affiliation(s)
- Ran Cui
- Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, School of Medicine, Shanghai, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, P. R. China
| | - Wen Yue
- Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - Edmund C Lattime
- Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - Mark N Stein
- Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - Qing Xu
- Department of Oncology, Shanghai Tenth People's Hospital, Tongji University, School of Medicine, Shanghai, P. R. China
| | - Xiang-Lin Tan
- Rutgers Cancer Institute of New Jersey, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.,Department of Epidemiology, School of Public Health, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| |
Collapse
|
64
|
La Porta S, Roth L, Singhal M, Mogler C, Spegg C, Schieb B, Qu X, Adams RH, Baldwin HS, Savant S, Augustin HG. Endothelial Tie1-mediated angiogenesis and vascular abnormalization promote tumor progression and metastasis. J Clin Invest 2018; 128:834-845. [PMID: 29355844 DOI: 10.1172/jci94674] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 11/30/2017] [Indexed: 12/20/2022] Open
Abstract
The endothelial tyrosine kinase receptor Tie1 remains poorly characterized, largely owing to its orphan receptor status. Global Tie1 inactivation causes late embryonic lethality, thereby reflecting its importance during development. Tie1 also plays pivotal roles during pathologies such as atherosclerosis and tumorigenesis. In order to study the contribution of Tie1 to tumor progression and metastasis, we conditionally deleted Tie1 in endothelial cells at different stages of tumor growth and metastatic dissemination. Tie1 deletion during primary tumor growth in mice led to a decrease in microvessel density and an increase in mural cell coverage with improved vessel perfusion. Reduced angiogenesis and enhanced vascular normalization resulted in a progressive increase of intratumoral necrosis that caused a growth delay only at later stages of tumor progression. Concomitantly, surgical removal of the primary tumor decreased the number of circulating tumor cells, reduced metastasis, and prolonged overall survival. Additionally, Tie1 deletion in experimental murine metastasis models prevented extravasation of tumor cells into the lungs and reduced metastatic foci. Taken together, the data support Tie1 as a therapeutic target by defining its regulatory functions during angiogenesis and vascular abnormalization and identifying its role during metastasis.
Collapse
Affiliation(s)
- Silvia La Porta
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany.,Department of Vascular Biology and Tumor Angiogenesis (CBTM), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Lise Roth
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany.,Department of Vascular Biology and Tumor Angiogenesis (CBTM), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Mahak Singhal
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany.,Department of Vascular Biology and Tumor Angiogenesis (CBTM), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Carolin Mogler
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany.,Institute of Pathology, Technical University Munich, Munich, Germany
| | - Carleen Spegg
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Benjamin Schieb
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany.,Department of Vascular Biology and Tumor Angiogenesis (CBTM), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Xianghu Qu
- Department of Pediatrics, Division of Cardiology, and.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Ralf H Adams
- Department of Tissue Morphogenesis, Max Planck Institute for Molecular Biomedicine, Münster, Germany.,Faculty of Medicine, University of Münster, Münster, Germany
| | - H Scott Baldwin
- Department of Pediatrics, Division of Cardiology, and.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Soniya Savant
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Hellmut G Augustin
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany.,Department of Vascular Biology and Tumor Angiogenesis (CBTM), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany
| |
Collapse
|
65
|
Uemura A. Pharmacologic management of diabetic retinopathy. J Biochem 2018; 163:3-9. [PMID: 28992234 DOI: 10.1093/jb/mvx057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 06/15/2017] [Indexed: 11/12/2022] Open
Abstract
Diabetic retinopathy (DR) is a leading cause of vision loss in working-age populations, primarily attributable to retinal vascular hyperpermeability, hypoperfusion, and neoangiogenesis. In the past decade, laser photocoagulation and surgical interventions to treat DR have been replaced by topical administrations of anti-vascular endothelial growth factor drugs and corticosteroids. Although these drugs have revolutionized clinical management of DR, their limited efficacy and adverse effects have raised an increasing demand for new drug development. Meanwhile, mouse retinas have been prevalently employed as an experimental model system for angiogenic research, which has greatly contributed to the understanding of general principles in vascular biology. Therefore, clinical ophthalmology and basic research have complimentarily accumulated invaluable information for DR drug discovery. This review highlights the current pharmacologic management of DR, the utility of experimental mouse retinal models, and the perspectives on new drugs targeting the angioepoitin-Tie2 signals.
Collapse
Affiliation(s)
- Akiyoshi Uemura
- Department of Retinal Vascular Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| |
Collapse
|
66
|
Angiopoietins bind thrombomodulin and inhibit its function as a thrombin cofactor. Sci Rep 2018; 8:505. [PMID: 29323190 PMCID: PMC5765006 DOI: 10.1038/s41598-017-18912-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 12/14/2017] [Indexed: 02/06/2023] Open
Abstract
Angiopoietin-1 (Ang1) and Angiopoietin-2 (Ang2) are ligands for Tie2, an endothelial-specific receptor tyrosine kinase that is an essential regulator of angiogenesis. Here we report the identification, via expression cloning, of thrombomodulin (TM) as another receptor for Ang1 and Ang2. Thrombomodulin is an endothelial cell surface molecule that plays an essential role as a coagulation inhibitor via its function as a cofactor in the thrombin-mediated activation of protein C, an anticoagulant protein, as well as thrombin-activatable fibrinolysis inhibitor (TAFI). Ang1 and Ang2 inhibited the thrombin/TM-mediated generation of activated protein C and TAFI in cultured endothelial cells, and inhibited the binding of thrombin to TM in vitro. Ang2 appears to bind TM with higher affinity than Ang1 and is a more potent inhibitor of TM function. Consistent with a potential role for angiopoietins in coagulation, administration of thrombin to mice rapidly increased plasma Ang1 levels, presumably reflecting release from activated platelets (previously shown to contain high levels of Ang1). In addition, Ang1 levels were significantly elevated in plasma prepared from wound blood, suggesting that Ang1 is released from activated platelets at sites of vessel injury. Our results imply a previously undescribed role for angiopoietins in the regulation of hemostasis.
Collapse
|
67
|
Redundant angiogenic signaling and tumor drug resistance. Drug Resist Updat 2018; 36:47-76. [DOI: 10.1016/j.drup.2018.01.002] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/22/2017] [Accepted: 01/11/2018] [Indexed: 02/07/2023]
|
68
|
Gu H, Wang YQ, Zhao CH, Zhong XM, Yang JG. The decrease of Tie-2 receptor phosphorylation in microvascular endothelial cells is involved in early brain injury after subarachnoid hemorrhage. Artery Res 2018. [DOI: 10.1016/j.artres.2018.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
|
69
|
Higgins SJ, Purcell LA, Silver KL, Tran V, Crowley V, Hawkes M, Conroy AL, Opoka RO, Hay JG, Quaggin SE, Thurston G, Liles WC, Kain KC. Dysregulation of angiopoietin-1 plays a mechanistic role in the pathogenesis of cerebral malaria. Sci Transl Med 2017; 8:358ra128. [PMID: 27683553 DOI: 10.1126/scitranslmed.aaf6812] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 09/09/2016] [Indexed: 12/16/2022]
Abstract
Cerebral malaria is a leading cause of global morbidity and mortality. Interventions targeting the underlying pathophysiology of cerebral malaria may improve outcomes compared to treatment with antimalarials alone. Microvascular leak plays an important role in the pathogenesis of cerebral malaria. The angiopoietin (Ang)-Tie-2 system is a critical regulator of vascular function. We show that Ang-1 expression and soluble Tie-2 expression were associated with disease severity and outcome in a prospective study of Ugandan children with severe malaria and in a preclinical murine model of experimental cerebral malaria. Ang-1 was necessary for maintenance of vascular integrity and survival in a mouse model of cerebral malaria. Therapeutic administration of Ang-1 preserved blood-brain barrier integrity and, in combination with artesunate treatment, improved survival beyond that with artesunate alone. These data define a role for dysregulation of the Ang-Tie-2 axis in the pathogenesis of cerebral malaria and support the evaluation of Ang-Tie-2-based interventions as potential adjunctive therapies for treating severe malaria.
Collapse
Affiliation(s)
- Sarah J Higgins
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada. Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, and the Tropical Disease Unit, Department of Medicine, University of Toronto, Toronto, Ontario M5G 1L7, Canada. Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | | | - Karlee L Silver
- Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, and the Tropical Disease Unit, Department of Medicine, University of Toronto, Toronto, Ontario M5G 1L7, Canada. Grand Challenges Canada, Toronto, Ontario M5G 1L7, Canada
| | - Vanessa Tran
- Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, and the Tropical Disease Unit, Department of Medicine, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Valerie Crowley
- Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, and the Tropical Disease Unit, Department of Medicine, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Michael Hawkes
- Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, and the Tropical Disease Unit, Department of Medicine, University of Toronto, Toronto, Ontario M5G 1L7, Canada. Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 1C9, Canada
| | - Andrea L Conroy
- Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, and the Tropical Disease Unit, Department of Medicine, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Robert O Opoka
- Department of Paediatrics and Child Health, Mulago Hospital and Makerere University, Kampala 7051, Uganda
| | - John G Hay
- New York University School of Medicine, New York, NY 10006, USA
| | - Susan E Quaggin
- Feinberg Cardiovascular Research Institute and Division of Nephrology/Hypertension, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | | | - W Conrad Liles
- Departments of Medicine, Pathology, Pharmacology and Global Health, University of Washington, Seattle, WA 98195, USA
| | - Kevin C Kain
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada. Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, and the Tropical Disease Unit, Department of Medicine, University of Toronto, Toronto, Ontario M5G 1L7, Canada.
| |
Collapse
|
70
|
Comunanza V, Bussolino F. Therapy for Cancer: Strategy of Combining Anti-Angiogenic and Target Therapies. Front Cell Dev Biol 2017; 5:101. [PMID: 29270405 PMCID: PMC5725406 DOI: 10.3389/fcell.2017.00101] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/15/2017] [Indexed: 12/12/2022] Open
Abstract
The concept that blood supply is required and necessary for cancer growth and spreading is intuitive and was firstly formalized by Judah Folkman in 1971, when he demonstrated that cancer cells release molecules able to promote the proliferation of endothelial cells and the formation of new vessels. This seminal result has initiated one of the most fascinating story of the medicine, which is offering a window of opportunity for cancer treatment based on the use of molecules inhibiting tumor angiogenesis and in particular vascular-endothelial growth factor (VEGF), which is the master gene in vasculature formation and is the commonest target of anti-angiogenic regimens. However, the clinical results are far from the remarkable successes obtained in pre-clinical models. The reasons of this discrepancy have been partially understood and well addressed in many reviews (Bergers and Hanahan, 2008; Bottsford-Miller et al., 2012; El-Kenawi and El-Remessy, 2013; Wang et al., 2015; Jayson et al., 2016). At present anti-angiogenic regimens are not used as single treatments but associated with standard chemotherapies. Based on emerging knowledge of the biology of VEGF, here we sustain the hypothesis of the efficacy of a dual approach based on targeting pro-angiogenic pathways and other druggable targets such as mutated oncogenes or the immune system.
Collapse
Affiliation(s)
- Valentina Comunanza
- Department of Oncology, University of Torino, Candiolo, Italy.,Candiolo Cancer Institute FPO-IRCCS, Candiolo, Italy
| | - Federico Bussolino
- Department of Oncology, University of Torino, Candiolo, Italy.,Candiolo Cancer Institute FPO-IRCCS, Candiolo, Italy
| |
Collapse
|
71
|
Han S, Lee SJ, Kim KE, Lee HS, Oh N, Park I, Ko E, Oh SJ, Lee YS, Kim D, Lee S, Lee DH, Lee KH, Chae SY, Lee JH, Kim SJ, Kim HC, Kim S, Kim SH, Kim C, Nakaoka Y, He Y, Augustin HG, Hu J, Song PH, Kim YI, Kim P, Kim I, Koh GY. Amelioration of sepsis by TIE2 activation-induced vascular protection. Sci Transl Med 2017; 8:335ra55. [PMID: 27099174 DOI: 10.1126/scitranslmed.aad9260] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/26/2016] [Indexed: 12/13/2022]
Abstract
Protection of endothelial integrity has been recognized as a frontline approach to alleviating sepsis progression, yet no effective agent for preserving endothelial integrity is available. Using an unusual anti-angiopoietin 2 (ANG2) antibody, ABTAA (ANG2-binding and TIE2-activating antibody), we show that activation of the endothelial receptor TIE2 protects the vasculature from septic damage and provides survival benefit in three sepsis mouse models. Upon binding to ANG2, ABTAA triggers clustering of ANG2, assembling an ABTAA/ANG2 complex that can subsequently bind and activate TIE2. Compared with a conventional ANG2-blocking antibody, ABTAA was highly effective in augmenting survival from sepsis by strengthening the endothelial glycocalyx, reducing cytokine storms, vascular leakage, and rarefaction, and mitigating organ damage. Together, our data advance the role of TIE2 activation in ameliorating sepsis progression and open a potential therapeutic avenue for sepsis to address the lack of sepsis-specific treatment.
Collapse
Affiliation(s)
- Sangyeul Han
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea. Center for Vascular Research, Institute for Basic Science, Daejeon 305-701, Republic of Korea.
| | - Seung-Jun Lee
- Center for Vascular Research, Institute for Basic Science, Daejeon 305-701, Republic of Korea. Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Kyung Eun Kim
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Hyo Seon Lee
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Nuri Oh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Inwon Park
- Graduate School of Nanoscience and Technology, KAIST, Daejeon 305-701, Republic of Korea
| | - Eun Ko
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Seung Ja Oh
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Yoon-Sook Lee
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - David Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Seungjoo Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Dae Hyun Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Kwang-Hoon Lee
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Su Young Chae
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Jung-Hoon Lee
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Su-Jin Kim
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Hyung-Chan Kim
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Seokkyun Kim
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Sung Hyun Kim
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Chungho Kim
- School of Life Sciences and Technologies, Korea University, Seoul 136-701, Republic of Korea
| | - Yoshikazu Nakaoka
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yulong He
- Cyrus Tang Hematology Center, Soochow University, Suzhou 215123, China
| | - Hellmut G Augustin
- Division of Vascular Oncology and Metastasis, German Cancer Research Center Heidelberg (DKFZ-ZMBH Alliance), 69121 Heidelberg, Germany. Department of Vascular Biology and Tumor Angiogenesis (CBTM), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Junhao Hu
- Division of Vascular Oncology and Metastasis, German Cancer Research Center Heidelberg (DKFZ-ZMBH Alliance), 69121 Heidelberg, Germany
| | - Paul H Song
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Yong-In Kim
- Samsung Advanced Institute of Technology, Suwon, 446-712, Republic of Korea
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology, KAIST, Daejeon 305-701, Republic of Korea
| | - Injune Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Gou Young Koh
- Center for Vascular Research, Institute for Basic Science, Daejeon 305-701, Republic of Korea. Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea.
| |
Collapse
|
72
|
Ye K, Li J, Li X, Chang S, Zhang Z. Ang1/Tie2 induces cell proliferation and migration in human papillary thyroid carcinoma via the PI3K/AKT pathway. Oncol Lett 2017; 15:1313-1318. [PMID: 29387247 DOI: 10.3892/ol.2017.7367] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 09/13/2017] [Indexed: 01/15/2023] Open
Abstract
The angiopoietin 1 (Ang1)/angiopoietin receptor (Tie2) signaling pathway may have a notable role in the pathogenesis of inflammatory diseases. The abnormal expression of angiopoietin 1 and Tie2 has also been reported in various malignant tumors, including papillary thyroid carcinoma (PTC). However, the role and mechanism of the Ang1/Tie2 pathway in the progression of PTC remains unclear. Therefore, the aims of the present study were to clarify this. Significantly high expression levels of Ang1 and Tie2 were observed in PTC tissues and cell lines. Furthermore, MTT and wound-healing assays revealed that the Ang1-mediated stimulation of human PTC cells resulted in increased proliferation and migration. Conversely, the downregulation of Tie2 levels using short hairpin RNA targeted at Tie2 abrogated the Ang1-mediated effect on cell proliferation and migration. In studying the expression of phosphoinositide-3 kinase (PI3K)/RAC serine/threonine-protein kinase (Akt) pathway, the upregulation of Ang1/Tie2 was found to be associated with the activation of the PI3K/Akt pathway in PTC. In conclusion, the data from the present study indicated that the Ang1/Tie2 induces PTC oncogenesis via the PI3K/Akt pathway, providing novel insights into human PTC therapy.
Collapse
Affiliation(s)
- Ke Ye
- Department of General Surgery, Xiangya Hospital of Central South University, Changsha, Hunan 410018, P.R. China
| | - Jindong Li
- Department of General Surgery, Xiangya Hospital of Central South University, Changsha, Hunan 410018, P.R. China
| | - Xinying Li
- Department of General Surgery, Xiangya Hospital of Central South University, Changsha, Hunan 410018, P.R. China
| | - Shi Chang
- Department of General Surgery, Xiangya Hospital of Central South University, Changsha, Hunan 410018, P.R. China
| | - Zhejia Zhang
- Department of General Surgery, Xiangya Hospital of Central South University, Changsha, Hunan 410018, P.R. China
| |
Collapse
|
73
|
Askoxylakis V, Arvanitis CD, Wong CSF, Ferraro GB, Jain RK. Emerging strategies for delivering antiangiogenic therapies to primary and metastatic brain tumors. Adv Drug Deliv Rev 2017. [PMID: 28648712 DOI: 10.1016/j.addr.2017.06.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Five-year survival rates have not increased appreciably for patients with primary and metastatic brain tumors. Nearly 17,000 patients die from primary brain tumors, whereas approximately 200,000 cases are diagnosed with brain metastasis every year in the US alone. At the same time, with improved control of systemic disease, the incidence of brain metastasis is increasing. Thus, novel approaches for improving the treatment outcome for these uniformly fatal diseases are needed urgently. In the review, we summarize the challenges in the treatment of these diseases using antiangiogenic therapies alone or in combination with radio-, chemo- and immuno-therapies. We also discuss the emerging strategies to improve the treatment outcome using both pharmacological approaches to normalize the tumor microenvironment and physical approaches (e.g., focused ultrasound) to modulate the blood-tumor-barrier, along with limitations of each approach. Finally, we offer some new avenues of future research.
Collapse
Affiliation(s)
- Vasileios Askoxylakis
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital (MGH), Harvard Medical School (HMS), Boston, MA, 02114, USA
| | - Costas D Arvanitis
- School of Mechanical Engineering, Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Christina S F Wong
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital (MGH), Harvard Medical School (HMS), Boston, MA, 02114, USA
| | - Gino B Ferraro
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital (MGH), Harvard Medical School (HMS), Boston, MA, 02114, USA
| | - Rakesh K Jain
- Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital (MGH), Harvard Medical School (HMS), Boston, MA, 02114, USA.
| |
Collapse
|
74
|
Wang X, Zhu Q, Lin Y, Wu L, Wu X, Wang K, He Q, Xu C, Wan X, Wang X. Crosstalk between TEMs and endothelial cells modulates angiogenesis and metastasis via IGF1-IGF1R signalling in epithelial ovarian cancer. Br J Cancer 2017; 117:1371-1382. [PMID: 28898232 PMCID: PMC5672923 DOI: 10.1038/bjc.2017.297] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Epithelial ovarian cancer (EOC) is the leading cause of death from gynaecologic malignancies and has a poor prognosis due to metastasis. Drugs targeting the angiogenesis pathway significantly improve patient outcome. However, the key factors linking angiogenesis and metastasis have not been elucidated. In this study, we found Tie2 expressing monocytes (CD14+Tie2+, TEMs) as key contributors to angiogenesis and metastasis of EOC. METHODS Tissue slides were evaluated by immunofluorescence for the presence of total tissue macrophages and TEMs. The correlation between microvascular density (MVD) values and the TEMs number or ratio was calculated in both ovarian cancer tissues and peritoneum. The rate of TEMs in monocytes was evaluated in the peripheral blood of female healthy donors, benign cysts patients, and EOC patients using flow cytometry. The TEMs rate in ascites from EOC patients was also evaluated by flow cytometry. The concentration of Ang2, as the ligand of Tie2, was examined by ELISA in serum samples of EOC patients, benign cysts patients, and ascites samples of EOC patients. The effects of Ang2 on the migration and the cytokine expression of TEMs were further examined. The pro- angiogenesis activity of TEMs via IGF1 was performed in both in vivo and in vitro. And the IGF1 blocking test was performed using neutralising antibody. RESULTS TEMs were significantly higher in tumour foci, peripheral blood and ascites in EOC patients. The proportion of TEMs among total tissue macrophages was positively correlated with tumour MVD. In vivo animal results showed that TEMs promoted EOC angiogenesis and metastasis. Further functional and mechanisms studies revealed that concentration of angiopoietin 2 (Ang2), a ligand of Tie2, was elevated in EOC ascites which further recruit TEMs in a dose-dependent manner as a powerful chemokine to TEMs. Recruited TEMs promoted endothelial cell function through IGF1-activated downstream signalling. Blocking secreted IGF1 using inhibiting antibody reduced TEMs mediated angiogenesis and metastasis. CONCLUSIONS TEMs significantly increased in EOC patients and were recruited to tumour loci by the increased Ang2. The increased TEMs have diagnostic value in ovarian cancer and were positively correlated with the MVD in ovarian cancer tissue. Furthermore, TEMs promote angiogenesis via IGF1 in both in vivo and in vitro experimental systems after stimulation by Ang2. Altogether, this study paves the way to develop novel therapy targets as the axis of Ang2-TEMs-IGF1 in EOC.
Collapse
Affiliation(s)
- Xinjing Wang
- Department of Gynecology and Obstetrics, XinHua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200092, China
| | - Qinyi Zhu
- Department of Gynecology and Obstetrics, XinHua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200092, China
| | - Yingying Lin
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai 200127, China
| | - Li Wu
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200126, China
| | - Xiaoli Wu
- Department of Gynecology and Obstetrics, XinHua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200092, China
| | - Kai Wang
- Central Laboratory, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200126, China
| | - Qizhi He
- Department of Pathology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200126, China
| | - Congjian Xu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Xiaoping Wan
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200126, China
| | - Xipeng Wang
- Department of Gynecology and Obstetrics, XinHua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200092, China
| |
Collapse
|
75
|
Harney AS, Karagiannis GS, Pignatelli J, Smith BD, Kadioglu E, Wise SC, Hood MM, Kaufman MD, Leary CB, Lu WP, Al-Ani G, Chen X, Entenberg D, Oktay MH, Wang Y, Chun L, De Palma M, Jones JG, Flynn DL, Condeelis JS. The Selective Tie2 Inhibitor Rebastinib Blocks Recruitment and Function of Tie2 Hi Macrophages in Breast Cancer and Pancreatic Neuroendocrine Tumors. Mol Cancer Ther 2017; 16:2486-2501. [PMID: 28838996 DOI: 10.1158/1535-7163.mct-17-0241] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 07/12/2017] [Accepted: 08/10/2017] [Indexed: 01/22/2023]
Abstract
Tumor-infiltrating myeloid cells promote tumor progression by mediating angiogenesis, tumor cell intravasation, and metastasis, which can offset the effects of chemotherapy, radiation, and antiangiogenic therapy. Here, we show that the kinase switch control inhibitor rebastinib inhibits Tie2, a tyrosine kinase receptor expressed on endothelial cells and protumoral Tie2-expressing macrophages in mouse models of metastatic cancer. Rebastinib reduces tumor growth and metastasis in an orthotopic mouse model of metastatic mammary carcinoma through reduction of Tie2+ myeloid cell infiltration, antiangiogenic effects, and blockade of tumor cell intravasation mediated by perivascular Tie2Hi/Vegf-AHi macrophages in the tumor microenvironment of metastasis (TMEM). The antitumor effects of rebastinib enhance the efficacy of microtubule inhibiting chemotherapeutic agents, either eribulin or paclitaxel, by reducing tumor volume, metastasis, and improving overall survival. Rebastinib inhibition of angiopoietin/Tie2 signaling impairs multiple pathways in tumor progression mediated by protumoral Tie2+ macrophages, including TMEM-dependent dissemination and angiopoietin/Tie2-dependent angiogenesis. Rebastinib is a promising therapy for achieving Tie2 inhibition in cancer patients. Mol Cancer Ther; 16(11); 2486-501. ©2017 AACR.
Collapse
Affiliation(s)
- Allison S Harney
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Department of Radiology, Albert Einstein College of Medicine, New York, New York.,Integrated Imaging Program, Albert Einstein College of Medicine, New York, New York.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, New York, New York
| | - George S Karagiannis
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Integrated Imaging Program, Albert Einstein College of Medicine, New York, New York.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, New York, New York
| | - Jeanine Pignatelli
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, New York, New York
| | - Bryan D Smith
- Deciphera Pharmaceuticals, LLC, Waltham, Massachusetts
| | - Ece Kadioglu
- ISREC, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Scott C Wise
- Deciphera Pharmaceuticals, LLC, Waltham, Massachusetts
| | - Molly M Hood
- Deciphera Pharmaceuticals, LLC, Waltham, Massachusetts
| | | | | | - Wei-Ping Lu
- Deciphera Pharmaceuticals, LLC, Waltham, Massachusetts
| | - Gada Al-Ani
- Deciphera Pharmaceuticals, LLC, Waltham, Massachusetts
| | - Xiaoming Chen
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, New York, New York
| | - David Entenberg
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Integrated Imaging Program, Albert Einstein College of Medicine, New York, New York.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, New York, New York
| | - Maja H Oktay
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Integrated Imaging Program, Albert Einstein College of Medicine, New York, New York.,Department of Pathology Albert Einstein College of Medicine, New York, New York
| | - Yarong Wang
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Integrated Imaging Program, Albert Einstein College of Medicine, New York, New York.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, New York, New York
| | | | - Michele De Palma
- ISREC, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Joan G Jones
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York.,Integrated Imaging Program, Albert Einstein College of Medicine, New York, New York.,Department of Pathology Albert Einstein College of Medicine, New York, New York.,Department of Epidemiology & Population Health, Albert Einstein College of Medicine, New York, New York
| | | | - John S Condeelis
- Department of Anatomy & Structural Biology, Albert Einstein College of Medicine, New York, New York. .,Integrated Imaging Program, Albert Einstein College of Medicine, New York, New York.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, New York, New York
| |
Collapse
|
76
|
A Review of Anti-Angiogenic Targets for Monoclonal Antibody Cancer Therapy. Int J Mol Sci 2017; 18:ijms18081786. [PMID: 28817103 PMCID: PMC5578174 DOI: 10.3390/ijms18081786] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/11/2017] [Accepted: 08/14/2017] [Indexed: 12/13/2022] Open
Abstract
Tumor angiogenesis is a key event that governs tumor progression and metastasis. It is controlled by the complicated and coordinated actions of pro-angiogenic factors and their receptors that become upregulated during tumorigenesis. Over the past several decades, vascular endothelial growth factor (VEGF) signaling has been identified as a central axis in tumor angiogenesis. The remarkable advent of recombinant antibody technology has led to the development of bevacizumab, a humanized antibody that targets VEGF and is a leading clinical therapy to suppress tumor angiogenesis. However, despite the clinical efficacy of bevacizumab, its significant side effects and drug resistance have raised concerns necessitating the identification of novel drug targets and development of novel therapeutics to combat tumor angiogenesis. This review will highlight the role and relevance of VEGF and other potential therapeutic targets and their receptors in angiogenesis. Simultaneously, we will also cover the current status of monoclonal antibodies being developed to target these candidates for cancer therapy.
Collapse
|
77
|
Caporarello N, Lupo G, Olivieri M, Cristaldi M, Cambria MT, Salmeri M, Anfuso CD. Classical VEGF, Notch and Ang signalling in cancer angiogenesis, alternative approaches and future directions (Review). Mol Med Rep 2017; 16:4393-4402. [PMID: 28791360 PMCID: PMC5646999 DOI: 10.3892/mmr.2017.7179] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 05/16/2017] [Indexed: 02/06/2023] Open
Abstract
Angiogenesis is the formation of new vessels starting from pre-existing vasculature. Tumour environment is characterized by 'aberrant angiogenesis', whose main features are tortuous and permeable blood vessels, heterogeneous both in their structure and in efficiency of perfusion and very different from normal vessels. Therapeutic strategies targeting the three pathways chiefly involved in tumour angiogenesis, VEGF, Notch and Ang signalling, have been identified to block the vascular supply to the tumour. However, phenomena of toxicity, development of primary and secondary resistance and hypoxia significantly blunted the effects of anti-angiogenic drugs in several tumour types. Thus, different strategies aimed to overcome these problems are imperative. The focus of the present review was some principal 'alternative' approaches to classic antiangiogenic therapies, including the cyclooxygenase-2 (COX-2) blockade, the use of oligonucleotide complementary to the miRNA to compete with the mRNA target (antimiRs) and the inhibition of matrix metalloproteinases (MMPs). The role of blood soluble VEGFA as a predictive biomarker during antiangiogenic therapy in gastric, ovarian and colorectal cancer was also examined.
Collapse
Affiliation(s)
- Nunzia Caporarello
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Gabriella Lupo
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Melania Olivieri
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Martina Cristaldi
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Maria Teresa Cambria
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Mario Salmeri
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Carmelina Daniela Anfuso
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| |
Collapse
|
78
|
Angiopoietin-Tie signalling in the cardiovascular and lymphatic systems. Clin Sci (Lond) 2017; 131:87-103. [PMID: 27941161 PMCID: PMC5146956 DOI: 10.1042/cs20160129] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 06/23/2016] [Accepted: 07/07/2016] [Indexed: 12/30/2022]
Abstract
Endothelial cells that form the inner layer of blood and lymphatic vessels are important regulators of vascular functions and centrally involved in the pathogenesis of vascular diseases. In addition to the vascular endothelial growth factor (VEGF) receptor pathway, the angiopoietin (Ang)-Tie system is a second endothelial cell specific ligand-receptor signalling system necessary for embryonic cardiovascular and lymphatic development. The Ang-Tie system also regulates postnatal angiogenesis, vessel remodelling, vascular permeability and inflammation to maintain vascular homoeostasis in adult physiology. This system is implicated in numerous diseases where the vasculature has an important contribution, such as cancer, sepsis, diabetes, atherosclerosis and ocular diseases. Furthermore, mutations in the TIE2 signalling pathway cause defects in vascular morphogenesis, resulting in venous malformations and primary congenital glaucoma. Here, we review recent advances in the understanding of the Ang-Tie signalling system, including cross-talk with the vascular endothelial protein tyrosine phosphatase (VE-PTP) and the integrin cell adhesion receptors, focusing on the Ang-Tie system in vascular development and pathogenesis of vascular diseases.
Collapse
|
79
|
Inhibitory potential of anthocyanin-rich purple and red corn extracts on human colorectal cancer cell proliferation in vitro. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.04.038] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
80
|
Schmittnaegel M, Rigamonti N, Kadioglu E, Cassará A, Wyser Rmili C, Kiialainen A, Kienast Y, Mueller HJ, Ooi CH, Laoui D, De Palma M. Dual angiopoietin-2 and VEGFA inhibition elicits antitumor immunity that is enhanced by PD-1 checkpoint blockade. Sci Transl Med 2017; 9:9/385/eaak9670. [PMID: 28404865 DOI: 10.1126/scitranslmed.aak9670] [Citation(s) in RCA: 383] [Impact Index Per Article: 54.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 03/17/2017] [Indexed: 12/14/2022]
Abstract
Pathological angiogenesis is a hallmark of cancer and a therapeutic target. Vascular endothelial growth factor A (VEGFA) and angiopoietin-2 (ANGPT2; also known as ANG2) are proangiogenic cytokines that sustain tumor angiogenesis and limit antitumor immunity. We show that combined ANGPT2 and VEGFA blockade by a bispecific antibody (A2V) provided superior therapeutic benefits, as compared to the single agents, in both genetically engineered and transplant tumor models, including metastatic breast cancer (MMTV-PyMT), pancreatic neuroendocrine tumor (RIP1-Tag2), and melanoma. Mechanistically, A2V promoted vascular regression, tumor necrosis, and antigen presentation by intratumoral phagocytes. A2V also normalized the remaining blood vessels and facilitated the extravasation and perivascular accumulation of activated, interferon-γ (IFNγ)-expressing CD8+ cytotoxic T lymphocytes (CTLs). Whereas the antitumoral activity of A2V was, at least partly, CTL-dependent, perivascular T cells concurrently up-regulated the expression of the immune checkpoint ligand programmed cell death ligand 1 (PD-L1) in tumor endothelial cells. IFNγ neutralization blunted this adaptive response, and PD-1 blockade improved tumor control by A2V in different cancer models. These findings position immune cells as key effectors of antiangiogenic therapy and support the rationale for cotargeting angiogenesis and immune checkpoints in cancer therapy.
Collapse
Affiliation(s)
- Martina Schmittnaegel
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Nicolò Rigamonti
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Ece Kadioglu
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Antonino Cassará
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Céline Wyser Rmili
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Anna Kiialainen
- Roche Innovation Center Basel, Pharmaceutical Sciences, Pharma Research and Early Development, 4070 Basel, Switzerland
| | - Yvonne Kienast
- Roche Innovation Center Munich, Oncology Discovery, Pharma Research and Early Development, 82377 Penzberg, Germany
| | - Hans-Joachim Mueller
- Roche Innovation Center Munich, Oncology Discovery, Pharma Research and Early Development, 82377 Penzberg, Germany
| | - Chia-Huey Ooi
- Roche Innovation Center Basel, Pharmaceutical Sciences, Pharma Research and Early Development, 4070 Basel, Switzerland.,Roche Innovation Center Munich, Oncology Discovery, Pharma Research and Early Development, 82377 Penzberg, Germany
| | - Damya Laoui
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Michele De Palma
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
| |
Collapse
|
81
|
Saharinen P, Eklund L, Alitalo K. Therapeutic targeting of the angiopoietin-TIE pathway. Nat Rev Drug Discov 2017; 16:635-661. [PMID: 28529319 DOI: 10.1038/nrd.2016.278] [Citation(s) in RCA: 318] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The endothelial angiopoietin (ANG)-TIE growth factor receptor pathway regulates vascular permeability and pathological vascular remodelling during inflammation, tumour angiogenesis and metastasis. Drugs that target the ANG-TIE pathway are in clinical development for oncological and ophthalmological applications. The aim is to complement current vascular endothelial growth factor (VEGF)-based anti-angiogenic therapies in cancer, wet age-related macular degeneration and macular oedema. The unique function of the ANG-TIE pathway in vascular stabilization also renders this pathway an attractive target in sepsis, organ transplantation, atherosclerosis and vascular complications of diabetes. This Review covers key aspects of the function of the ANG-TIE pathway in vascular disease and describes the recent development of novel therapeutics that target this pathway.
Collapse
Affiliation(s)
- Pipsa Saharinen
- Wihuri Research Institute and Translational Cancer Biology Program, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, P.O. Box 63, FI-00014 Helsinki, Finland
| | - Lauri Eklund
- Oulu Center for Cell-Matrix Research, Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, Aapistie 5A, University of Oulu, 90220 Oulu, Finland
| | - Kari Alitalo
- Wihuri Research Institute and Translational Cancer Biology Program, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, P.O. Box 63, FI-00014 Helsinki, Finland
| |
Collapse
|
82
|
Park DY, Lee J, Kim J, Kim K, Hong S, Han S, Kubota Y, Augustin HG, Ding L, Kim JW, Kim H, He Y, Adams RH, Koh GY. Plastic roles of pericytes in the blood-retinal barrier. Nat Commun 2017; 8:15296. [PMID: 28508859 PMCID: PMC5440855 DOI: 10.1038/ncomms15296] [Citation(s) in RCA: 187] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/17/2017] [Indexed: 01/18/2023] Open
Abstract
The blood-retinal barrier (BRB) consists of tightly interconnected capillary endothelial cells covered with pericytes and glia, but the role of the pericytes in BRB regulation is not fully understood. Here, we show that platelet-derived growth factor (PDGF)-B/PDGF receptor beta (PDGFRβ) signalling is critical in formation and maturation of BRB through active recruitment of pericytes onto growing retinal vessels. Impaired pericyte recruitment to the vessels shows multiple vascular hallmarks of diabetic retinopathy (DR) due to BRB disruption. However, PDGF-B/PDGFRβ signalling is expendable for maintaining BRB integrity in adult mice. Although selective pericyte loss in stable adult retinal vessels surprisingly does not cause BRB disintegration, it sensitizes retinal vascular endothelial cells (ECs) to VEGF-A, leading to upregulation of angiopoietin-2 (Ang2) in ECs through FOXO1 activation and triggering a positive feedback that resembles the pathogenesis of DR. Accordingly, either blocking Ang2 or activating Tie2 greatly attenuates BRB breakdown, suggesting potential therapeutic approaches to reduce retinal damages upon DR progression.
Collapse
Affiliation(s)
- Do Young Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Junyeop Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Jaeryung Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Kangsan Kim
- Center for Vascular Research, Institute of Basic Science (IBS), Daejeon 34141, Korea
| | - Seonpyo Hong
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Sangyeul Han
- Center for Vascular Research, Institute of Basic Science (IBS), Daejeon 34141, Korea
| | - Yoshiaki Kubota
- The Laboratory of Vascular Biology, Keio University, Tokyo 160-8582, Japan
| | - Hellmut G Augustin
- Division of Vascular Oncology and Metastasis, German Cancer Research Center, DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany
| | - Lei Ding
- Columbia Stem Cell Initiative, Department of Rehabilitation and Regenerative Medicine, Department of Microbiology and Immunology, Columbia University Medical Center, New York, New York 10032, USA
| | - Jin Woo Kim
- Department of Biological Sciences, KAIST, Daejeon 34141, Korea
| | - Hail Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Yulong He
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215123, China
| | - Ralf H Adams
- Department of Tissue Morphogenesis, Max-Planck-Institute for Molecular Biomedicine, and Faculty of Medicine, University of Münster, D-48149 Münster, Germany
| | - Gou Young Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.,Center for Vascular Research, Institute of Basic Science (IBS), Daejeon 34141, Korea
| |
Collapse
|
83
|
Torimura T, Iwamoto H, Nakamura T, Abe M, Ikezono Y, Wada F, Sakaue T, Masuda H, Hashimoto O, Koga H, Ueno T, Yano H. Antiangiogenic and Antitumor Activities of Aflibercept, a Soluble VEGF Receptor-1 and -2, in a Mouse Model of Hepatocellular Carcinoma. Neoplasia 2017; 18:413-24. [PMID: 27435924 PMCID: PMC4954942 DOI: 10.1016/j.neo.2016.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 04/06/2016] [Accepted: 05/03/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND & AIM: Aflibercept known as ziv-aflibercept in the United States is a soluble decoy receptor of both vascular endothelial growth factor (VEGF) receptor-1 and -2 known to inhibit the binding of VEGF and placental growth factor (PlGF) to VEGF receptor-1 and -2. Here, we analyzed the mechanisms of the antitumor effects of aflibercept in mouse hepatoma models. METHODS: In in vitro studies, we determined the effects of aflibercept on human umbilical vein cell (HUVEC) proliferation and bone marrow (BM) cell differentiation to endothelial progenitor cells (EPCs). In in vivo experiments, aflibercept was injected intraperitoneally in hepatoma cell tumor-bearing mice, and its inhibitory effects on tumor growth and BM cell migration to tumor tissues were evaluated. RESULTS: Aflibercept suppressed phosphorylation of VEGF receptor-1 and -2 in HUVEC and dose-dependently inhibited VEGF-induced HUVEC proliferation. It suppressed the differentiation of BM cells to EPCs and migration of BM cells to tumor tissues. It also suppressed tumor growth and prolonged survival time of tumor-bearing mice without side effects. In tumor tissues, aflibercept upregulated the expression of hypoxia inducible factor1-α, VEGF, PlGF, fibroblast growth factor-2, platelet derived growth factor-BB, and transforming growth factor-α and reduced microvascular density. It also reduced sinusoidal density in noncancerous liver tissues. CONCLUSIONS: Our results demonstrated potent antitumor activity for aflibercept in a mouse model of hepatocellular carcinoma. These effects were mediated through inhibition of neovascularization, caused by inhibition of endothelial cell proliferation, EPC differentiation, and BM cell migration to tumor tissues.
Collapse
Affiliation(s)
- Takuji Torimura
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan; Liver Cancer Division, Research Center for Innovative Cancer Therapy, Kurume, Japan.
| | - Hideki Iwamoto
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.
| | - Toru Nakamura
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Mitsuhiko Abe
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yu Ikezono
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Fumitaka Wada
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Takahiko Sakaue
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Hiroshi Masuda
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Osamu Hashimoto
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Hironori Koga
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan; Liver Cancer Division, Research Center for Innovative Cancer Therapy, Kurume, Japan
| | - Takato Ueno
- Asakura Medical Association Hospital, Asakura, Japan
| | - Hirohisa Yano
- Department of Pathology, Kurume University School of Medicine, Kurume, Japan
| |
Collapse
|
84
|
ADAMTS13 controls vascular remodeling by modifying VWF reactivity during stroke recovery. Blood 2017; 130:11-22. [PMID: 28428179 DOI: 10.1182/blood-2016-10-747089] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 04/16/2017] [Indexed: 12/12/2022] Open
Abstract
Angiogenic response is essential for ischemic brain repair. The von Willebrand factor (VWF)-cleaving protease disintegrin and metalloprotease with thrombospondin type I motif, member 13 (ADAMTS13) is required for endothelial tube formation in vitro, but there is currently no in vivo evidence supporting a function of ADAMTS13 in angiogenesis. Here we show that mice deficient in ADAMTS13 exhibited reduced neovascularization, brain capillary perfusion, pericyte and smooth muscle cell coverage on microvessels, expression of the tight junction and basement membrane proteins, and accelerated blood-brain barrier (BBB) breakdown and extravascular deposits of serum proteins in the peri-infarct cortex at 14 days after stroke. Deficiency of VWF or anti-VWF antibody treatment significantly increased microvessels, perfused capillary length, and reversed pericyte loss and BBB changes in Adamts13-/- mice. Furthermore, we observed that ADAMTS13 deficiency decreased angiopoietin-2 and galectin-3 levels in the isolated brain microvessels, whereas VWF deficiency had the opposite effect. Correlating with this, overexpression of angiopoietin-2 by adenoviruses treatment or administration of recombinant galectin-3 normalized microvascular reductions, pericyte loss, and BBB breakdown in Adamts13-/- mice. The vascular changes induced by angiopoietin-2 overexpression and recombinant galectin-3 treatment in Adamts13-/- mice were abolished by the vascular endothelial growth factor receptor-2 antagonist SU1498. Importantly, treating wild-type mice with recombinant ADAMTS13 at 7 days after stroke markedly increased neovascularization and vascular repair and improved functional recovery at 14 days. Our results suggest that ADAMTS13 controls key steps of ischemic vascular remodeling and that recombinant ADAMTS13 is a putative therapeutic avenue for promoting stroke recovery.
Collapse
|
85
|
Elevated angiopoietin 2 in aqueous of patients with neovascular age related macular degeneration correlates with disease severity at presentation. Sci Rep 2017; 7:45081. [PMID: 28345626 PMCID: PMC5366858 DOI: 10.1038/srep45081] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 02/17/2017] [Indexed: 11/15/2022] Open
Abstract
Angiopoietin 2 (ANG2) is a proangiogenic cytokine which may have an implication in neovascular age related macular degeneration (nAMD). In 24 eyes of 24 subjects presenting with treatment naïve nAMD and 26 eyes of 26 control patients, aqueous humor samples were collected at the time of intervention (intravitreal injection of anti-vascular endothelial growth factor or cataract extraction). Best corrected visual acuity (BCVA) with and central macular thickness (CMT) using optical coherence tomography (OCT) were measured before each injection in the nAMD group. Aqueous cytokine levels were determined by immunoassay using a multiplex array (Quansys Biosciences, Logan, UT). Levels of ANG2 in the aqueous were significantly higher in nAMD patients than those of the control group (p < 0.0001), so were hepatocyte growth factor (HGF), interleukin-8 (IL-8) and tissue inhibitor of metalloproteinase 1 (TIMP 1), all with p < 0.001. ANG2 correlated with worse BCVA (r = 0.44, p-value = 0.027) and greater CMT (r = 0.66, p-value < 0.0001) on optical coherence tomography (OCT). ANG2 is upregulated in patients with nAMD and correlates with severity of disease at presentation.
Collapse
|
86
|
Tumor Associated Macrophages as Therapeutic Targets for Breast Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1026:331-370. [PMID: 29282692 DOI: 10.1007/978-981-10-6020-5_16] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tumor-associated macrophages (TAMs) are the most abundant inflammatory infiltrates in the tumor stroma. TAMs promote tumor growth by suppressing immunocompetent cells, including neovascularization and supporting cancer stem cells. In the chapter, we discuss recent efforts in reprogramming or inhibiting tumor-protecting properties of TAMs, and developing potential strategies to increase the efficacy of breast cancer treatment.
Collapse
|
87
|
Angiopoietin-1 and Angiopoietin-2 Expression Imbalance Influence in Early Period After Subarachnoid Hemorrhage. Int Neurourol J 2016; 20:288-295. [PMID: 28043115 PMCID: PMC5209580 DOI: 10.5213/inj.1632692.346] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 10/03/2016] [Indexed: 12/02/2022] Open
Abstract
Purpose Microvascular endothelial integrity is important for maintaining the blood-brain barrier (BBB). However, subarachnoid hemorrhage (SAH) disrupts this integrity, making the BBB dysfunctional—an important pathophysiological change after SAH. Angiopoietin-1 (Ang-1) and angiopoietin-2 (Ang-2) regulate microvascular permeability by balancing each other’s expression. Methods This study investigated the dynamics of Ang-1 and Ang-2 expression after SAH and the protective effect of Ang-1 on BBB functioning using an endovascular puncture model of rat SAH. The Ang-1 and Ang-2 expression in brain tissue was determined by immunohistochemistry. In addition, Western blotting was used to estimate Ang-1 and Ang-2 concentration and to compare them at 6–72 hours post-SAH cortex and hippocampus. Evans blue viability assay was used to evaluate BBB permeability, and neurological testing was implemented to evaluate neurological impairment during SAH. Results It was found that following SAH, Ang-1 expression decreases and Ang-2 expression increases in the cortex, hippocampus, and microvessels. The Ang-1/Ang-2 ratio decreased as quickly as 6 hours after SAH and reached its lowest 1 day after SAH. Finally, it was found that exogenous Ang-1 reduces SAH-associated BBB leakage and improves neurological function in post-SAH rats. Conclusions Our findings suggest that the equilibrium between Ang-1 and Ang-2 is broken in a period shortly after SAH, and the treatment of exogenous Ang-1 injection alleviates neurological dysfunctions through decreasing BBB destruction.
Collapse
|
88
|
Wu X, Giobbie-Hurder A, Liao X, Connelly C, Connolly EM, Li J, Manos MP, Lawrence D, McDermott D, Severgnini M, Zhou J, Gjini E, Lako A, Lipschitz M, Pak CJ, Abdelrahman S, Rodig S, Hodi FS. Angiopoietin-2 as a Biomarker and Target for Immune Checkpoint Therapy. Cancer Immunol Res 2016; 5:17-28. [PMID: 28003187 DOI: 10.1158/2326-6066.cir-16-0206] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 11/07/2016] [Accepted: 11/09/2016] [Indexed: 01/07/2023]
Abstract
Immune checkpoint therapies targeting CTLA-4 and PD-1 have proven effective in cancer treatment. However, the identification of biomarkers for predicting clinical outcomes and mechanisms to overcome resistance remain as critical needs. Angiogenesis is increasingly appreciated as an immune modulator with potential for combinatorial use with checkpoint blockade. Angiopoietin-2 (ANGPT2) is an immune target in patients and is involved in resistance to anti-VEGF treatment with the monoclonal antibody bevacizumab. We investigated the predictive and prognostic value of circulating ANGPT2 in metastatic melanoma patients receiving immune checkpoint therapy. High pretreatment serum ANGPT2 was associated with reduced overall survival in CTLA-4 and PD-1 blockade-treated patients. These treatments also increased serum ANGPT2 in many patients early after treatment initiation, whereas ipilimumab plus bevacizumab treatment decreased serum concentrations. ANGPT2 increases were associated with reduced response and/or overall survival. Ipilimumab increased, and ipilimumab plus bevacizumab decreased, tumor vascular ANGPT2 expression in a subset of patients, which was associated with increased and decreased tumor infiltration by CD68+ and CD163+ macrophages, respectively. In vitro, bevacizumab blocked VEGF-induced ANGPT2 expression in tumor-associated endothelial cells, whereas ANGPT2 increased PD-L1 expression on M2-polarized macrophages. Treatments elicited long-lasting and functional antibody responses to ANGPT2 in a subset of patients receiving clinical benefit. Our findings suggest that serum ANGPT2 may be considered as a predictive and prognostic biomarker for immune checkpoint therapy and may contribute to treatment resistance via increasing proangiogenic and immunosuppressive activities in the tumor microenvironment. Targeting ANGPT2 provides a rational combinatorial approach to improve the efficacy of immune therapy. Cancer Immunol Res; 5(1); 17-28. ©2016 AACR.
Collapse
Affiliation(s)
- Xinqi Wu
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Anita Giobbie-Hurder
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Xiaoyun Liao
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Courtney Connelly
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Erin M Connolly
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Melanoma Disease Center, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Jingjing Li
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Michael P Manos
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Donald Lawrence
- Massachusetts General Hospital Cancer Center, Boston, Massachusetts
| | | | - Mariano Severgnini
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Jun Zhou
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Evisa Gjini
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Ana Lako
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Mikel Lipschitz
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Christine J Pak
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Sara Abdelrahman
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Scott Rodig
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts
| | - F Stephen Hodi
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.
- Center for Immuno-oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Melanoma Disease Center, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
89
|
Scheuer W, Thomas M, Hanke P, Sam J, Osl F, Weininger D, Baehner M, Seeber S, Kettenberger H, Schanzer J, Brinkmann U, Weidner KM, Regula J, Klein C. Anti-tumoral, anti-angiogenic and anti-metastatic efficacy of a tetravalent bispecific antibody (TAvi6) targeting VEGF-A and angiopoietin-2. MAbs 2016; 8:562-73. [PMID: 26864324 PMCID: PMC4966847 DOI: 10.1080/19420862.2016.1147640] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Vascular endothelial growth factor (VEGF)-A blockade has been validated clinically as a treatment for human cancers. Angiopoietin-2 (Ang-2) is a key regulator of blood vessel remodeling and maturation. In tumors, Ang-2 is up-regulated and an unfavorable prognostic factor. Recent data demonstrated that Ang-2 inhibition mediates anti-tumoral effects. We generated a tetravalent bispecific antibody (Ang-2-VEGF-TAvi6) targeting VEGF-A with 2 arms based on bevacizumab (Avastin®), and targeting Ang-2 with 2 arms based on a novel anti-Ang-2 antibody (LC06). The two Ang-2-targeting single-chain variable fragments are disulfide-stabilized and fused to the C-terminus of the heavy chain of bevacizumab. Treatment with Ang-2-VEGF-A-TAvi6 led to a complete abrogation of angiogenesis in the cornea micropocket assay. Metastatic spread and tumor growth of subcutaneous, orthotopic and anti-VEGF-A resistant tumors were also efficiently inhibited. These data further establish Ang-2-VEGF bispecific antibodies as a promising anti-angiogenic, anti-metastatic and anti-tumor agent for the treatment of cancer.
Collapse
Affiliation(s)
- Werner Scheuer
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Markus Thomas
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Petra Hanke
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Johannes Sam
- b Roche Innovation Center Zurich, Roche Pharma Research and Early Development , Wagistrasse 18, Schlieren , Switzerland
| | - Franz Osl
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Diana Weininger
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Monika Baehner
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Stefan Seeber
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Hubert Kettenberger
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Jürgen Schanzer
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Ulrich Brinkmann
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - K Michael Weidner
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Jörg Regula
- a Roche Innovation Center Penzberg, Roche Pharma Research and Early Development , Nonnenwald 2, Penzberg , Germany
| | - Christian Klein
- b Roche Innovation Center Zurich, Roche Pharma Research and Early Development , Wagistrasse 18, Schlieren , Switzerland
| |
Collapse
|
90
|
Schneider H, Szabo E, Machado RAC, Broggini-Tenzer A, Walter A, Lobell M, Heldmann D, Süssmeier F, Grünewald S, Weller M. Novel TIE-2 inhibitor BAY-826 displays in vivo efficacy in experimental syngeneic murine glioma models. J Neurochem 2016; 140:170-182. [PMID: 27787897 DOI: 10.1111/jnc.13877] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 12/20/2022]
Abstract
Targeting the vascular endothelial growth factor signaling axis in glioblastoma inevitably leads to tumor recurrence and a more aggressive phenotype. Therefore, other angiogenic pathways, like the angiopoietin/tunica interna endothelial cell kinase (TIE) signaling axis, have become additional targets for therapeutic intervention. Here, we explored whether targeting the receptor tyrosine kinase TIE-2 using a novel, highly potent, orally available small molecule TIE-2 inhibitor (BAY-826) improves tumor control in syngeneic mouse glioma models. BAY-826 inhibits TIE-2 phosphorylation in vitro and in vivo as demonstrated by suppression of Angiopoietin-1- or Na3 VO4 -induced TIE-2 phosphorylation in glioma cells or extracts of lungs from BAY-826-treated mice. There was a trend toward prolonged survival upon single-agent treatment in two of four models (SMA-497 and SMA-540) and there was a significant survival benefit in one model (SMA-560). Co-treatment with BAY-826 and irradiation was ineffective in one model (SMA-497), but provided synergistic prolongation of survival in another (SMA-560). Decreased vessel densities and increased leukocyte infiltration were observed, but might be independent processes as the effect was also observed in single treatment modalities. These data demonstrate that TIE-2 inhibition may improve tumor response to treatment in highly vascularized tumors such as glioblastoma.
Collapse
Affiliation(s)
- Hannah Schneider
- Laboratory of Molecular Neuro-Oncology, Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Emese Szabo
- Laboratory of Molecular Neuro-Oncology, Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Raquel A C Machado
- Laboratory of Molecular Neuro-Oncology, Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Angela Broggini-Tenzer
- Laboratory for Molecular Radiobiology, Department of Radiation Oncology, University Hospital Zurich, Zurich, Switzerland
| | - Alexander Walter
- GTRG Oncology II, Drug Discovery, Bayer Pharma AG, Berlin, Germany
| | - Mario Lobell
- Medicinal Chemistry, Drug Discovery, Bayer Pharma AG, Wuppertal, Germany
| | - Dieter Heldmann
- GTRG Oncology II, Drug Discovery, Bayer Pharma AG, Berlin, Germany
| | - Frank Süssmeier
- Medicinal Chemistry, Drug Discovery, Bayer Pharma AG, Wuppertal, Germany
| | - Sylvia Grünewald
- GTRG Oncology II, Drug Discovery, Bayer Pharma AG, Berlin, Germany
| | - Michael Weller
- Laboratory of Molecular Neuro-Oncology, Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland
- Center for Neuroscience, University of Zurich, Zurich, Switzerland
| |
Collapse
|
91
|
Park JS, Kim IK, Han S, Park I, Kim C, Bae J, Oh SJ, Lee S, Kim JH, Woo DC, He Y, Augustin HG, Kim I, Lee D, Koh GY. Normalization of Tumor Vessels by Tie2 Activation and Ang2 Inhibition Enhances Drug Delivery and Produces a Favorable Tumor Microenvironment. Cancer Cell 2016; 30:953-967. [PMID: 27960088 DOI: 10.1016/j.ccell.2016.10.018] [Citation(s) in RCA: 217] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 07/29/2016] [Accepted: 10/26/2016] [Indexed: 01/01/2023]
Abstract
A destabilized tumor vasculature leads to limited drug delivery, hypoxia, detrimental tumor microenvironment, and even metastasis. We performed a side-by-side comparison of ABTAA (Ang2-Binding and Tie2-Activating Antibody) and ABA (Ang2-Blocking Antibody) in mice with orthotopically implanted glioma, with subcutaneously implanted Lewis lung carcinoma, and with spontaneous mammary cancer. We found that Tie2 activation induced tumor vascular normalization, leading to enhanced blood perfusion and chemotherapeutic drug delivery, markedly lessened lactate acidosis, and reduced tumor growth and metastasis. Moreover, ABTAA favorably altered the immune cell profile within tumors. Together, our findings establish that simultaneous Tie2 activation and Ang2 inhibition form a powerful therapeutic strategy to elicit a favorable tumor microenvironment and enhanced delivery of a chemotherapeutic agent into tumors.
Collapse
Affiliation(s)
- Jin-Sung Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Center for Vascular Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Il-Kug Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Sangyeul Han
- Center for Vascular Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea; Samsung Advanced Institute of Technology, Suwon 16678, Republic of Korea
| | - Intae Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Center for Vascular Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Chan Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeomil Bae
- Center for Vascular Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Seung Ja Oh
- Samsung Advanced Institute of Technology, Suwon 16678, Republic of Korea
| | - Seungjoo Lee
- Department of Neurosurgery, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Jeong Hoon Kim
- Department of Neurosurgery, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Dong-Cheol Woo
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Yulong He
- Cyrus Tang Hematology Center, Soochow University, Suzhou 215123, China
| | - Hellmut G Augustin
- Division of Vascular Oncology and Metastasis, German Cancer Research Center Heidelberg (DKFZ-ZMBH Alliance), 69121 Heidelberg, Germany
| | - Injune Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Doheon Lee
- Department of Bio and Brain Engineering, KAIST, Daejeon 34141, Republic of Korea; Bio-Synergy Research Center, Daejeon 34141, Republic of Korea.
| | - Gou Young Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Center for Vascular Research, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea.
| |
Collapse
|
92
|
Deng L, Stafford JH, Liu SC, Chernikova SB, Merchant M, Recht L, Martin Brown J. SDF-1 Blockade Enhances Anti-VEGF Therapy of Glioblastoma and Can Be Monitored by MRI. Neoplasia 2016; 19:1-7. [PMID: 27940247 PMCID: PMC5149063 DOI: 10.1016/j.neo.2016.11.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 11/08/2016] [Accepted: 11/15/2016] [Indexed: 12/15/2022] Open
Abstract
Despite the approval of antiangiogenic therapy for glioblastoma multiforme (GBM) patients, survival benefits are still limited. One of the resistance mechanisms for antiangiogenic therapy is the induction of hypoxia and subsequent recruitment of macrophages by stromal-derived factor (SDF)-1α (CXCL-12). In this study, we tested whether olaptesed pegol (OLA-PEG, NOX-A12), a novel SDF-1α inhibitor, could reverse the recruitment of macrophages and potentiate the antitumor effect of anti–vascular endothelial growth factor (VEGF) therapy. We also tested whether magnetic resonance imaging (MRI) with ferumoxytol as a contrast agent could provide early information on macrophage blockade. Orthotopic human G12 glioblastomas in nude mice and rat C6 glioblastomas were employed as the animal models. These were treated with bevacizumab or B-20, both anti-VEGF antibodies. Rats were MR imaged with ferumoxytol for macrophage detection. Tumor hypoxia and SDF-1α expression were elevated by VEGF blockade. Adding OLA-PEG to bevacizumab or B-20 significantly prolonged the survival of rodents bearing intracranial GBM compared with anti-VEGF therapy alone. Intratumoral CD68+ tumor associated macrophages (TAMs) were increased by VEGF blockade, but the combination of OLA-PEG + VEGF blockade markedly lowered TAM levels compared with VEGF blockade alone. MRI with ferumoxytol as a contrast agent noninvasively demonstrated macrophage reduction in OLA-PEG + anti-VEGF–treated rats compared with VEGF blockade alone. In conclusion, inhibition of SDF-1 with OLA-PEG inhibited the recruitment of TAMs by VEGF blockage and potentiated its antitumor efficacy in GBM. Noninvasive MRI with ferumoxytol as a contrast agent provides early information on the effect of OLA-PEG in reducing TAMs.
Collapse
Affiliation(s)
- Lei Deng
- Department of Radiation Oncology, Stanford University, A246, 1050A Arastradero Rd., Palo Alto, CA 94304-1334, USA
| | - Jason H Stafford
- Department of Radiation Oncology, Stanford University, A246, 1050A Arastradero Rd., Palo Alto, CA 94304-1334, USA
| | - Shie-Chau Liu
- Department of Radiation Oncology, Stanford University, A246, 1050A Arastradero Rd., Palo Alto, CA 94304-1334, USA
| | - Sophia B Chernikova
- Department of Radiation Oncology, Stanford University, A246, 1050A Arastradero Rd., Palo Alto, CA 94304-1334, USA
| | - Milton Merchant
- Department of Neurology, Stanford University School of Medicine, 875 Blake Wilbur Dr., Stanford, CA 94305, USA
| | - Lawrence Recht
- Department of Neurology, Stanford University School of Medicine, 875 Blake Wilbur Dr., Stanford, CA 94305, USA
| | - J Martin Brown
- Department of Radiation Oncology, Stanford University, A246, 1050A Arastradero Rd., Palo Alto, CA 94304-1334, USA.
| |
Collapse
|
93
|
Aflibercept and Ang1 supplementation improve neoadjuvant or adjuvant chemotherapy in a preclinical model of resectable breast cancer. Sci Rep 2016; 6:36694. [PMID: 27841282 PMCID: PMC5107907 DOI: 10.1038/srep36694] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 10/12/2016] [Indexed: 02/07/2023] Open
Abstract
Phase III clinical trials evaluating bevacizumab (an antibody to the angiogenic ligand, VEGF-A) in breast cancer have found improved responses in the presurgical neoadjuvant setting but no benefits in the postsurgical adjuvant setting. The objective of this study was to evaluate alternative antiangiogenic therapies, which target multiple VEGF family members or differentially modulate the Angiopoietin/Tie2 pathway, in a mouse model of resectable triple-negative breast cancer (TNBC). Neoadjuvant therapy experiments involved treating established orthotopic xenografts of an aggressive metastatic variant of the MDA-MB-231 human TNBC cell line, LM2-4. Adjuvant therapies were given after primary tumor resections to treat postsurgical regrowths and distant metastases. Aflibercept (‘VEGF Trap’, which neutralizes VEGF-A, VEGF-B and PlGF) showed greater efficacy than nesvacumab (an anti-Ang2 antibody) as an add-on to neoadjuvant/adjuvant chemotherapy. Concurrent inhibition of Ang1 and Ang2 signaling (through an antagonistic anti-Tie2 antibody) was not more efficacious than selective Ang2 inhibition. In contrast, short-term perioperative BowAng1 (a recombinant Ang1 variant) improved the efficacy of adjuvant chemotherapy. In conclusion, concurrent VEGF pathway inhibition is more likely than Ang/Tie2 pathway inhibition (e.g., anti-Ang2, anti-Ang2/Ang1, anti-Tie2) to improve neoadjuvant/adjuvant chemotherapies for TNBC. Short-term perioperative Ang1 supplementation may also have therapeutic potential in conjunction with adjuvant chemotherapy for TNBC.
Collapse
|
94
|
Sabatino L, Kusmic C, Nicolini G, Amato R, Casini G, Iervasi G, Balzan S. T3 enhances Ang2 in rat aorta in myocardial I/R: comparison with left ventricle. J Mol Endocrinol 2016; 57:139-49. [PMID: 27444191 DOI: 10.1530/jme-16-0118] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 07/21/2016] [Indexed: 01/28/2023]
Abstract
Angiogenesis is important for recovery after tissue damage in myocardial ischemia/reperfusion, and tri-iodothyronine (T3) has documented effects on angiogenesis. The angiopoietins 1/2 and tyrosine kinase receptor represent an essential system in angiogenesis controlling endothelial cell survival and vascular maturation. Recently, in a 3-day ischemia/reperfusion rat model, the infusion of a low dose of T3 improved the post-ischemic recovery of cardiac function.Adopting this model, our study aimed to investigate the effects of T3 on the capillary index and the expression of angiogenic genes as the angiopoietins 1/2 and tyrosine kinase receptor system, in the thoracic aorta and in the left ventricle. In the thoracic aorta, T3 infusion significantly improved the angiogenic sprouting and angiopoietin 2 expression. Instead, Sham-T3 group did not show any significant increment of capillary density and angiopoietin 2 expression. In the area at risk (AAR) of the left ventricle, T3 infusion did not increase capillary density but restored levels of angiopoietin 1, which were reduced in I/R group. Angiopoietin 2 levels were similar to Sham group and unchanged by T3 administration. In the remote zone, T3 induced a significant increment of both angiopoietin 1/2. In conclusion, T3 infusion induced a different response of angiopoietin 1/2 between the ventricle (the AAR and the remote zone) and the thoracic aorta, probably reflecting the different action of angiopoietin 1/2 in cardiomyocytes and endothelial cells. Overall, these data suggest a new aspect of T3-mediated cardioprotection through angiogenesis.
Collapse
Affiliation(s)
| | | | | | - Rosario Amato
- Department of BiologyUnit of General Physiology, University of Pisa, Pisa, Italy
| | - Giovanni Casini
- Department of BiologyUnit of General Physiology, University of Pisa, Pisa, Italy
| | | | | |
Collapse
|
95
|
Biel NM, Siemann DW. Targeting the Angiopoietin-2/Tie-2 axis in conjunction with VEGF signal interference. Cancer Lett 2016; 380:525-533. [PMID: 25312939 PMCID: PMC4394020 DOI: 10.1016/j.canlet.2014.09.035] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 09/11/2014] [Accepted: 09/30/2014] [Indexed: 12/13/2022]
Abstract
Anti-angiogenic therapies target the tumor vasculature, impairing its development and growth. It was hypothesized over 40 years ago by the late Judah Folkman and Julie Denekamp that depriving a tumor of oxygen and nutrients, by targeting the tumor vasculature, could have therapeutic benefits. Identification of growth factors and signaling pathways important in angiogenesis subsequently led to the development of a series of anti-angiogenic agents that over the past decade have become part of the standard of care in several disease settings. Unfortunately not all patients respond to the currently available anti-angiogenic therapies while others become resistant to these agents following prolonged exposure. Identification of new pathways that may drive angiogenesis led to the development of second-generation anti-angiogenic agents such as those targeting the Ang-2/Tie2 axis. Recently, it has become clear that combination of first and second generation agents targeting the blood vessel network can lead to outcomes superior to those using either agent alone. The present review focuses on the current status of VEGF and Ang-2 targeted agents and the potential utility of using them in combination to impair tumor angiogenesis.
Collapse
Affiliation(s)
- Nikolett M Biel
- Department of Pathology, University of Florida College of Medicine, 1395 Center Drive, Gainesville, FL 32610, USA.
| | - Dietmar W Siemann
- Department of Radiation Oncology, University of Florida College of Medicine, 2000 SW, Archer Road, Gainesville, FL 32610, USA
| |
Collapse
|
96
|
Scholz A, Harter PN, Cremer S, Yalcin BH, Gurnik S, Yamaji M, Di Tacchio M, Sommer K, Baumgarten P, Bähr O, Steinbach JP, Trojan J, Glas M, Herrlinger U, Krex D, Meinhardt M, Weyerbrock A, Timmer M, Goldbrunner R, Deckert M, Braun C, Schittenhelm J, Frueh JT, Ullrich E, Mittelbronn M, Plate KH, Reiss Y. Endothelial cell-derived angiopoietin-2 is a therapeutic target in treatment-naive and bevacizumab-resistant glioblastoma. EMBO Mol Med 2016; 8:39-57. [PMID: 26666269 PMCID: PMC4718155 DOI: 10.15252/emmm.201505505] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Glioblastoma multiforme (GBM) is treated by surgical resection followed by radiochemotherapy. Bevacizumab is commonly deployed for anti‐angiogenic therapy of recurrent GBM; however, innate immune cells have been identified as instigators of resistance to bevacizumab treatment. We identified angiopoietin‐2 (Ang‐2) as a potential target in both naive and bevacizumab‐treated glioblastoma. Ang‐2 expression was absent in normal human brain endothelium, while the highest Ang‐2 levels were observed in bevacizumab‐treated GBM. In a murine GBM model, VEGF blockade resulted in endothelial upregulation of Ang‐2, whereas the combined inhibition of VEGF and Ang‐2 leads to extended survival, decreased vascular permeability, depletion of tumor‐associated macrophages, improved pericyte coverage, and increased numbers of intratumoral T lymphocytes. CD206+ (M2‐like) macrophages were identified as potential novel targets following anti‐angiogenic therapy. Our findings imply a novel role for endothelial cells in therapy resistance and identify endothelial cell/myeloid cell crosstalk mediated by Ang‐2 as a potential resistance mechanism. Therefore, combining VEGF blockade with inhibition of Ang‐2 may potentially overcome resistance to bevacizumab therapy.
Collapse
Affiliation(s)
- Alexander Scholz
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany
| | - Patrick N Harter
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt, Germany
| | - Sebastian Cremer
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany
| | - Burak H Yalcin
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany
| | - Stefanie Gurnik
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany
| | - Maiko Yamaji
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany
| | - Mariangela Di Tacchio
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany
| | - Kathleen Sommer
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany
| | - Peter Baumgarten
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany Department of Neurosurgery, Goethe University Medical School, Frankfurt, Germany
| | - Oliver Bähr
- Senckenberg Institute of Neurooncology, Goethe University Medical School, Frankfurt, Germany
| | - Joachim P Steinbach
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt, Germany Senckenberg Institute of Neurooncology, Goethe University Medical School, Frankfurt, Germany
| | - Jörg Trojan
- Medical Clinic I, Goethe University Medical School, Frankfurt, Germany
| | - Martin Glas
- Klinische Kooperationseinheit Neuroonkologie, Robert Janker Klinik, Bonn, Germany
| | | | - Dietmar Krex
- Klinik und Poliklinik für Neurochirurgie, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | - Matthias Meinhardt
- Institut für Pathologie, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | - Astrid Weyerbrock
- Klinik für Neurochirurgie, Universitätsklinikum Freiburg, Freiburg, Germany
| | - Marco Timmer
- Zentrum für Neurochirurgie, Uniklinik Köln, Köln, Germany
| | | | | | - Christian Braun
- Zentrum für Neuroonkologie, Universitätsklinik Tübingen, Tübingen, Germany
| | - Jens Schittenhelm
- Abteilung Neuropathologie, Universitätsklinik Tübingen, Tübingen, Germany
| | - Jochen T Frueh
- LOEWE Center for Cell and Gene Therapy, Goethe University Medical School, Frankfurt, Germany Pediatric Hematology & Oncology, Children's Hospital, Goethe University Medical School, Frankfurt, Germany
| | - Evelyn Ullrich
- LOEWE Center for Cell and Gene Therapy, Goethe University Medical School, Frankfurt, Germany Pediatric Hematology & Oncology, Children's Hospital, Goethe University Medical School, Frankfurt, Germany
| | - Michel Mittelbronn
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt, Germany
| | - Karl H Plate
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt, Germany
| | - Yvonne Reiss
- Institute of Neurology (Edinger Institute), Goethe University Medical School, Frankfurt, Germany German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt, Germany
| |
Collapse
|
97
|
Shah P, Lueschen N, Ardestani A, Oberholzer J, Olerud J, Carlsson PO, Maedler K. Angiopoetin-2 Signals Do Not Mediate the Hypervascularization of Islets in Type 2 Diabetes. PLoS One 2016; 11:e0161834. [PMID: 27617438 PMCID: PMC5019443 DOI: 10.1371/journal.pone.0161834] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Accepted: 08/12/2016] [Indexed: 12/12/2022] Open
Abstract
AIMS Changes in the islet vasculature have been implicated in the regulation of β-cell survival and function during the progression to type 2 diabetes (T2D). Failure of the β-cell to compensate for the increased insulin demand in obesity eventually leads to diabetes; as a result of the complex interplay of genetic and environmental factors (e.g. ongoing inflammation within the islets) and impaired vascular function. The Angiopoietin/Tie (Ang/Tie) angiogenic system maintains vasculature and is closely related to organ inflammation and angiogenesis. In this study we aimed to identify whether the vessel area within the islets changes in diabetes and whether such changes would be triggered by the Tie-antagonist Ang-2. METHODS Immunohistochemical and qPCR analyses to follow islet vascularization and Ang/Tie levels were performed in human pancreatic autopsies and isolated human and mouse islets. The effect of Ang-2 was assessed in β-cell-specific Ang-2 overexpressing mice during high fat diet (HFD) feeding. RESULTS Islet vessel area was increased in autopsy pancreases from patients with T2D. The vessel markers Tie-1, Tie-2 and CD31 were upregulated in mouse islets upon HFD feeding from 8 to 24 weeks. Ang-2 was transiently upregulated in mouse islets at 8 weeks of HFD and under glucolipotoxic conditions (22.2 mM glucose/ 0.5 mM palmitate) in vitro in human and mouse islets, in contrast to its downregulation by cytokines (IL-1β, IFN-ɣ and TNF-α). Ang-1 on the other hand was oppositely regulated, with a significant loss under glucolipotoxic condition, a trend to reduce in islets from patients with T2D and an upregulation by cytokines. Modulation of such changes in Ang-2 by its overexpression or the inhibition of its receptor Tie-2 impaired β-cell function at basal conditions but protected islets from cytokine induced apoptosis. In vivo, β-cell-specific Ang-2 overexpression in mice induced hypervascularization under normal diet but contrastingly led to hypovascularized islets in response to HFD together with increased apoptosis and reduced β-cell mass. CONCLUSIONS Islet hypervascularization occurs in T2D. A balanced expression of the Ang1/Ang2 system is important for islet physiology. Ang-2 prevents β-cell mass and islet vascular adaptation in response to HFD feeding with no major influence on glucose homeostasis.
Collapse
Affiliation(s)
- Payal Shah
- Centre for Biomolecular Interactions, University of Bremen, Bremen, Germany
| | - Navina Lueschen
- Centre for Biomolecular Interactions, University of Bremen, Bremen, Germany
| | - Amin Ardestani
- Centre for Biomolecular Interactions, University of Bremen, Bremen, Germany
| | - Jose Oberholzer
- Division of Transplantation, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Johan Olerud
- Department of Immunology, Genetics and pathology, Uppsala University, Uppsala, Sweden
| | - Per-Ola Carlsson
- Department of Medical cell biology and Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Kathrin Maedler
- Centre for Biomolecular Interactions, University of Bremen, Bremen, Germany,German Center for Diabetes Research (DZD) project partner, University of Bremen, Bremen, Germany,* E-mail:
| |
Collapse
|
98
|
Baker LCJ, Boult JKR, Thomas M, Koehler A, Nayak T, Tessier J, Ooi CH, Birzele F, Belousov A, Zajac M, Horn C, LeFave C, Robinson SP. Acute tumour response to a bispecific Ang-2-VEGF-A antibody: insights from multiparametric MRI and gene expression profiling. Br J Cancer 2016; 115:691-702. [PMID: 27529514 PMCID: PMC5023775 DOI: 10.1038/bjc.2016.236] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 06/03/2016] [Accepted: 07/06/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND To assess antivascular effects, and evaluate clinically translatable magnetic resonance imaging (MRI) biomarkers of tumour response in vivo, following treatment with vanucizumab, a bispecific human antibody against angiopoietin-2 (Ang-2) and vascular endothelial growth factor-A (VEGF-A). METHODS Colo205 colon cancer xenografts were imaged before and 5 days after treatment with a single 10 mg kg(-1) dose of either vanucizumab, bevacizumab (anti-human VEGF-A), LC06 (anti-murine/human Ang-2) or omalizumab (anti-human IgE control). Volumetric response was assessed using T2-weighted MRI, and diffusion-weighted, dynamic contrast-enhanced (DCE) and susceptibility contrast MRI used to quantify tumour water diffusivity (apparent diffusion coefficient (ADC), × 10(6) mm(2) s(-1)), vascular perfusion/permeability (K(trans), min(-1)) and fractional blood volume (fBV, %) respectively. Pathological correlates were sought, and preliminary gene expression profiling performed. RESULTS Treatment with vanucizumab, bevacizumab or LC06 induced a significant (P<0.01) cytolentic response compared with control. There was no significant change in tumour ADC in any treatment group. Uptake of Gd-DTPA was restricted to the tumour periphery in all post-treatment groups. A significant reduction in tumour K(trans) (P<0.05) and fBV (P<0.01) was determined 5 days after treatment with vanucizumab only. This was associated with a significant (P<0.05) reduction in Hoechst 33342 uptake compared with control. Gene expression profiling identified 20 human genes exclusively regulated by vanucizumab, 6 of which are known to be involved in vasculogenesis and angiogenesis. CONCLUSIONS Vanucizumab is a promising antitumour and antiangiogenic treatment, whose antivascular activity can be monitored using DCE and susceptibility contrast MRI. Differential gene expression in vanucizumab-treated tumours is regulated by the combined effect of Ang-2 and VEGF-A inhibition.
Collapse
MESH Headings
- Adenocarcinoma/blood supply
- Adenocarcinoma/diagnostic imaging
- Adenocarcinoma/drug therapy
- Adenocarcinoma/pathology
- Angiogenesis Inhibitors/immunology
- Angiogenesis Inhibitors/therapeutic use
- Angiopoietin-2/antagonists & inhibitors
- Angiopoietin-2/immunology
- Animals
- Antibodies, Bispecific/therapeutic use
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Humanized
- Bevacizumab/therapeutic use
- Cell Line, Tumor
- Colonic Neoplasms/blood supply
- Colonic Neoplasms/diagnostic imaging
- Colonic Neoplasms/drug therapy
- Colonic Neoplasms/pathology
- DNA Replication/drug effects
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Immunoglobulin E/immunology
- Magnetic Resonance Imaging/methods
- Mice
- Molecular Targeted Therapy
- Neovascularization, Pathologic/diagnostic imaging
- Neovascularization, Pathologic/drug therapy
- Neovascularization, Pathologic/pathology
- Omalizumab/therapeutic use
- Tumor Burden
- Vascular Endothelial Growth Factor A/antagonists & inhibitors
- Vascular Endothelial Growth Factor A/immunology
- Xenograft Model Antitumor Assays
Collapse
Affiliation(s)
- Lauren CJ Baker
- Cancer Research UK Cancer Imaging Centre, Division of Radiotherapy and Imaging, The Institute of Cancer Research, London SM2 5NG, UK
| | - Jessica KR Boult
- Cancer Research UK Cancer Imaging Centre, Division of Radiotherapy and Imaging, The Institute of Cancer Research, London SM2 5NG, UK
| | - Markus Thomas
- Roche Pharma Research and Early Development (pRED), Roche Innovation Center, Penzberg DE-82377, Germany
| | - Astrid Koehler
- Roche Pharma Research and Early Development (pRED), Roche Innovation Center, Penzberg DE-82377, Germany
| | - Tapan Nayak
- Roche pRED, Roche Innovation Center, Basel CH-4070, Switzerland
| | - Jean Tessier
- Roche pRED, Roche Innovation Center, Basel CH-4070, Switzerland
| | - Chia-Huey Ooi
- Roche Pharma Research and Early Development (pRED), Roche Innovation Center, Penzberg DE-82377, Germany
| | - Fabian Birzele
- Roche Pharma Research and Early Development (pRED), Roche Innovation Center, Penzberg DE-82377, Germany
| | - Anton Belousov
- Roche Pharma Research and Early Development (pRED), Roche Innovation Center, Penzberg DE-82377, Germany
| | | | - Carsten Horn
- Roche pRED, Roche Innovation Center, Basel CH-4070, Switzerland
| | - Clare LeFave
- Roche pRED, Roche Innovation Center, New York, NY 10016, USA
| | - Simon P Robinson
- Cancer Research UK Cancer Imaging Centre, Division of Radiotherapy and Imaging, The Institute of Cancer Research, London SM2 5NG, UK
| |
Collapse
|
99
|
Lampinen AM, Virman JP, Bono P, Luukkaala TH, Sunela KL, Kujala PM, Saharinen P, Kellokumpu-Lehtinen PLI. Novel Angiogenesis Markers as Long-Term Prognostic Factors in Patients With Renal Cell Cancer. Clin Genitourin Cancer 2016; 15:e15-e24. [PMID: 27554585 DOI: 10.1016/j.clgc.2016.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 06/28/2016] [Accepted: 07/13/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To evaluate Ang-2 expression alone and in combination with expression of cell proliferation and cell survival markers (MIB-1 and Bcl-2) and angiogenesis markers (VEGFR3 and CD31), and the associations of these markers with renal cell cancer (RCC) in long-term survival. PATIENTS AND METHODS Our study included 224 patients with RCC who were treated before the availability of antiangiogenic agents between 1985 and 1995, at the Pirkanmaa Hospital District in Finland. All tumor samples were reclassified and reevaluated by an experienced uropathologist, and parallel tissue microarrays (TMA) were performed for immunohistochemical analysis. Kaplan-Meier's survival estimation method and Cox proportional hazards models were used for survival analysis. RESULTS The percentage of Ang-2 expression in the tumor area varied from 0.07 to 25.65. Ang-2 expression was significantly associated with the tumor grade and stage, as well as the MIB-1, Bcl-2, and VEGFR3 expression (P = .042, P = .019, P = .039, P = .013, and P = .005, respectively). The highest Ang-2 expression predicted better survival, P < .05. High Bcl-2 and low MIB-1 expression combined with Ang-2 expression was associated with better survival. Multivariate analysis showed poorer survival in patients with low Ang-2 or high MIB-1 expressions: HR 1.89, 95% CI 1.16 to 3.08, P = .010 and HR 2.20, 95% CI 1.36 to 3.54, P = .001, respectively. CONCLUSIONS Very high Ang-2 expression was associated with better survival in patients with RCC. Ang-2 expression correlated with tumor stage and grade, but it was still an independent prognostic factor in a multivariate analysis.
Collapse
Affiliation(s)
- Anita M Lampinen
- Translational Cancer Biology Program, Research Program's Unit and Department of Virology, University of Helsinki and Wihuri Research Institute, Helsinki, Finland
| | - Juha P Virman
- University of Tampere, School of Medicine, Tampere, Finland; Department of Anesthesia, Tampere University Hospital, Tampere, Finland
| | - Petri Bono
- Cancer Center, Helsinki University Central Hospital, Helsinki, Finland
| | - Tiina H Luukkaala
- Science Center, Pirkanmaa Hospital District and School of Health Sciences, University of Tampere, Tampere, Finland
| | - Kaisa L Sunela
- Department of Oncology, Tampere University Hospital, Tampere, Finland
| | - Paula M Kujala
- Department of Pathology, Tampere University Hospital, Fimlab Laboratories, Tampere, Finland
| | - Pipsa Saharinen
- Translational Cancer Biology Program, Research Program's Unit and Department of Virology, University of Helsinki and Wihuri Research Institute, Helsinki, Finland
| | | |
Collapse
|
100
|
Kim M, Allen B, Korhonen EA, Nitschké M, Yang HW, Baluk P, Saharinen P, Alitalo K, Daly C, Thurston G, McDonald DM. Opposing actions of angiopoietin-2 on Tie2 signaling and FOXO1 activation. J Clin Invest 2016; 126:3511-25. [PMID: 27548529 DOI: 10.1172/jci84871] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 06/24/2016] [Indexed: 01/12/2023] Open
Abstract
Angiopoietin-2 (ANG2) regulates blood vessel remodeling in many pathological conditions through differential effects on Tie2 signaling. While ANG2 competes with ANG1 to inhibit Tie2, it can paradoxically also promote Tie2 phosphorylation (p-Tie2). A related paradox is that both inactivation and overactivation of Tie2 can result in vascular remodeling. Here, we reconciled these opposing actions of ANG2 by manipulating conditions that govern its actions in the vasculature. ANG2 drove vascular remodeling during Mycoplasma pulmonis infection by acting as a Tie2 antagonist, which led to p-Tie2 suppression, forkhead box O1 (FOXO1) activation, increased ANG2 expression, and vessel leakiness. These changes were exaggerated by anti-Tie2 antibody, inhibition of PI3K signaling, or ANG2 overexpression and were reduced by anti-ANG2 antibody or exogenous ANG1. In contrast, under pathogen-free conditions, ANG2 drove vascular remodeling by acting as an agonist, promoting high p-Tie2, low FOXO1 activation, and no leakage. Tie1 activation was strong under pathogen-free conditions, but infection or TNF-α led to Tie1 inactivation by ectodomain cleavage and promoted the Tie2 antagonist action of ANG2. Together, these data indicate that ANG2 activation of Tie2 supports stable enlargement of normal nonleaky vessels, but reduction of Tie1 in inflammation leads to ANG2 antagonism of Tie2 and initiates a positive feedback loop wherein FOXO1-driven ANG2 expression promotes vascular remodeling and leakage.
Collapse
|